At the A1 level, the word 'specification' is quite advanced. You probably won't use it often. Think of it as a 'list of details'. For example, if you want to buy a phone, you look at a list. The list says how big the screen is and how good the camera is. That list is the 'specification'. It tells you exactly what the phone is like. You can say 'The phone has a good specification.' It is a big word for a simple idea: a list of facts about a thing. You might see it on websites when you go shopping. Just remember: specification = a list of details about how something is made or what it can do. It is a noun, so you use it like 'the specification' or 'my specification'.
For A2 learners, 'specification' is a useful word for describing products and simple projects. It means a detailed description of what something needs to be. Imagine you are asking someone to make a cake for you. You tell them it must be chocolate, it must have three layers, and it must have 'Happy Birthday' written on it. These details are your 'specification'. In the workplace, you might hear your boss talk about the 'specification for a task'. This means the instructions on how to do the task correctly. It is more formal than the word 'instructions'. You can use it when you want to be very clear about what you want. For example: 'Please read the specification before you start the work.'
At the B1 level, you should understand 'specification' as a formal requirement in professional and technical contexts. It is a detailed description of the materials, dimensions, and workmanship required for a piece of work. For example, in construction, the specification tells the builder what kind of wood or bricks to use. In IT, it tells the programmer what features the software must have. It is often used with the verb 'meet'. 'The product meets the specification' means the product is exactly as it should be. You will also see the plural form 'specifications' or the short form 'specs'. You should be able to use it in sentences like: 'The architect changed the specification for the roof' or 'We need to follow the technical specifications carefully.'
At the B2 level, you are expected to use 'specification' with precision in various fields. It is not just a list; it is a document that serves as a standard for quality and compliance. You should be familiar with collocations like 'technical specification', 'design specification', and 'functional specification'. You understand that a specification is often a legal part of a contract. If a company fails to deliver a product 'to specification', they may face penalties. You can also use the word in a more abstract sense, such as a 'person specification' in a job description, which outlines the essential and desirable qualities of a candidate. You should be able to discuss the importance of having a clear specification to avoid misunderstandings in project management.
For C1 learners, 'specification' is a fundamental term for articulating complex requirements and standards. You should understand the nuance between a 'specification' (the document/standard) and 'specifying' (the act of defining). You can use the word to describe the granular details of a system, such as 'the specification of the communication protocol' or 'the architectural specifications of the skyscraper'. You are also aware of the word's role in standardization and interoperability. You can discuss how specifications allow different systems to work together. In your writing, you use the word to add a layer of professional authority, distinguishing between general descriptions and rigorous technical specifications. You might also explore the etymology, noting how the word relates to 'species' and 'specific'.
At the C2 level, you have a mastery of 'specification' and can use it in highly specialized academic, legal, and technical discourses. You understand its role in defining the ontological boundaries of a project or product. You can analyze the 'specification' of a philosophical argument or a complex legal statute. You are comfortable using the word in phrases like 'the formal specification of a logic system' or 'the specification of rights within a constitutional framework'. You recognize that a specification is a tool for reducing entropy in communication, providing a rigid structure that ensures fidelity between an idea and its realization. You can also use the word metaphorically in literature or high-level critique to describe the precise way an author 'specifies' a character's traits or a setting's atmosphere.

specification in 30 Seconds

  • A specification is a detailed list of requirements for building or making something correctly.
  • It is commonly used in engineering, construction, and technology to ensure precision and quality.
  • The word can refer to a formal document (a 'spec') or a specific technical detail.
  • Meeting the specification is crucial for project success and fulfilling contractual obligations.

The term specification is a cornerstone of professional communication, particularly in fields that require precision, such as engineering, architecture, software development, and manufacturing. At its core, a specification is a comprehensive and detailed document or statement that prescribes the exact requirements for a product, material, or service. It serves as a blueprint that leaves no room for ambiguity, ensuring that all parties involved—whether they are designers, builders, or clients—have a shared understanding of what the final output must look like and how it must function. When you hear someone ask for the 'specs' of a computer or a car, they are using a shortened form of this word to refer to the technical details like processor speed, RAM capacity, or engine horsepower.

Technical Precision
In technical contexts, a specification defines the measurable characteristics of an object. This includes dimensions, tolerances, materials, and performance standards. For instance, a specification for a bridge would detail the grade of steel required and the maximum load it must support.

The architect provided a detailed specification for the building's foundation to ensure it could withstand seismic activity.

Beyond the physical world, the word is equally vital in the digital realm. In software engineering, a functional specification describes how a software system should behave from the user's perspective. It outlines every feature, button, and workflow. Without a clear specification, developers might build a product that doesn't meet the client's needs, leading to costly revisions and delays. This word is often used during the planning phase of any project. It acts as a contract of sorts; if the final product meets the specification, the work is considered successful. If it fails to meet even one minor detail in the specification, it may be rejected as non-compliant.

Legal and Contractual Weight
In many industries, the specification is a legally binding document. If a contractor uses materials that do not match the written specification, they can be held liable for breach of contract. This ensures quality control and safety across large-scale projects.

The procurement team rejected the shipment because the engine parts did not meet the original specification for heat resistance.

In everyday life, you might encounter this word when buying electronics or appliances. A smartphone's specification includes its screen size, battery life, and camera resolution. Consumers use these specifications to compare different models and make informed purchasing decisions. In this sense, the word moves from a professional requirement to a tool for consumer transparency. Whether it is a high-level academic discussion about engineering standards or a simple conversation about the latest laptop, 'specification' remains the go-to term for describing the 'what' and 'how' of an object's existence.

Standardization
Specifications are often based on international standards, such as ISO. This allows products made in different countries to work together seamlessly, like a USB cable fitting into any computer port regardless of the manufacturer.

The new software update must follow the latest security specification to protect user data from hacking attempts.

We need to change the specification of the paint to a non-toxic variety for the children's hospital project.

The client is very particular about the specification for the kitchen marble; it must be sourced from Italy.

Using the word specification correctly involves understanding its role as a noun that describes a set of requirements. It is frequently paired with adjectives that define the nature of those requirements. For example, 'technical specification' is perhaps the most common collocation, used to describe the engineering or scientific details of a project. Another common pairing is 'design specification', which focuses on the aesthetic and functional aspects of a product. When you are writing or speaking, you can use 'specification' to emphasize the need for clarity and detail. It is not just a 'description'; it is a 'specification'—a word that carries more weight and implies a higher level of precision.

Verb Pairings
Common verbs used with specification include 'meet', 'follow', 'exceed', 'draft', 'revise', and 'approve'. For example: 'The product must meet the specification' or 'The team is currently drafting the specification'.

After three rounds of feedback, the board finally approved the project specification.

In plural form, 'specifications' often refers to a collection of different requirements. You might say, 'The specifications for the new car are impressive,' referring to its speed, fuel efficiency, and safety features all at once. In a professional setting, you might hear the phrase 'built to specification'. This means that the item was constructed exactly according to the provided instructions. If something is 'not to specification', it means there is a mistake or a deviation from the plan. This distinction is crucial in quality assurance and manufacturing. When discussing specifications, it is also important to note that they can be either 'open' or 'closed'. An open specification allows for some flexibility in materials, while a closed specification is extremely rigid.

Prepositional Usage
We usually say 'specification for' (the specification for the new bridge) or 'specification of' (the specification of the materials used). You can also use 'within specification' to describe something that is performing correctly.

The technician confirmed that the engine's temperature was well within specification during the stress test.

When writing about specifications in an academic or formal report, it is helpful to use the word to introduce a list of requirements. For instance, 'The following specification outlines the necessary components for the solar panel installation.' This provides a clear structure for the reader. In more casual conversation, you might use the word to describe your own personal requirements for something. 'My specification for a dream house includes a large garden and a modern kitchen.' While this is slightly more informal, it still conveys the idea of a detailed list of desires. The versatility of the word allows it to bridge the gap between high-level technical documentation and everyday descriptive language.

Adjective Modifiers
Use adjectives like 'exact', 'rigid', 'detailed', 'vague', or 'preliminary' to add more meaning. A 'vague specification' is a common cause of project failure, while an 'exact specification' ensures success.

The contractor complained that the specification was too vague to provide an accurate cost estimate.

Please provide a full specification of the hardware you intend to use for the server upgrade.

The car was built to the buyer's exact specification, including the custom leather interior.

In the real world, specification is a word that moves through various environments, from the high-tech labs of Silicon Valley to the dusty construction sites of urban development. If you are in a business meeting, you will hear it during the 'requirements gathering' phase. Managers and stakeholders will discuss the 'functional specification' to decide what a new product should do. In this context, the word represents the bridge between a vague idea and a concrete plan. It is the language of feasibility and execution. If a project manager says, 'We need to lock down the specification by Friday,' they are emphasizing the urgency of finalizing the details so that work can begin.

Consumer Electronics
When you watch a tech review on YouTube, the reviewer will often spend the first five minutes 'going over the specs'. They are talking about the specifications of the device—the screen resolution, the processor, the camera megapixels. Here, the word is synonymous with performance and value.

The tech reviewer noted that the laptop's specification was impressive for its price point.

In the construction industry, the word is ubiquitous. Architects and site managers constantly refer to the 'spec book'. This is a thick volume that contains the specifications for every single part of a building, from the type of light bulbs to the thickness of the insulation. If a worker is unsure about how to install a particular component, they are told to 'check the spec'. In this environment, the word is a synonym for 'the law of the project'. Deviating from the specification can lead to structural failures or legal disputes, so it is treated with the utmost respect. You will also hear it in the automotive industry, where engineers work to meet strict 'emissions specifications' set by governments to reduce pollution.

Government and Regulation
Regulatory bodies use specifications to set safety standards. For example, the FAA has strict specifications for aircraft parts to ensure they don't fail during flight. These are often called 'certification specifications'.

The new toy was pulled from shelves because it did not meet the government's safety specification for small parts.

In the world of fashion and design, a 'spec sheet' is used to communicate the exact measurements of a garment to a factory. It includes details like seam allowance, button placement, and fabric type. Without this specification, a designer's vision could be lost in translation when the clothes are mass-produced. Even in culinary arts, high-end restaurants have 'dish specifications' to ensure that every plate of food looks and tastes exactly the same, regardless of which chef is cooking. This ensures consistency and quality across a brand. Whether it's a burger at a fast-food chain or a luxury handbag, a specification is what ensures that what you get is what was promised.

Job Market
When applying for jobs, you will often see a 'person specification' alongside the job description. This lists the specific qualifications, experience, and skills required for the role.

I need to update my resume to better align with the specification for the Senior Developer role.

The aircraft's specification includes a range of over 5,000 miles without refueling.

The laboratory requires a very narrow specification for the purity of the chemicals used in the experiment.

One of the most frequent mistakes learners make with the word specification is confusing it with the word 'description'. While they are related, they are not interchangeable. A description is often general and subjective ('the car is fast and red'), whereas a specification is precise and objective ('the car has a 400hp engine and uses Rosso Corsa paint code #D40000'). Using 'description' when you mean 'specification' in a professional setting can make you sound less authoritative or technically proficient. Another common error is failing to use the correct plural form. Many people say 'the spec' when they should say 'the specifications' if they are referring to a whole list of requirements.

Confusion with 'Specifics'
Learners often use 'specifics' (the details) and 'specification' (the document) interchangeably. While 'give me the specifics' is correct for asking for details, 'give me the specification' specifically asks for the formal document or standard.

Incorrect: I need a general specification of the weather. (Correct: I need a general description of the weather.)

Another mistake involves the preposition used after the word. It is common to hear 'specification on' something, but the standard academic and professional usage is 'specification for' or 'specification of'. For example, 'the specification for the new software' is preferred over 'the specification on the new software'. Additionally, learners sometimes confuse 'specification' with 'specialization'. A specialization is a field of study or expertise ('My specialization is heart surgery'), while a specification is a requirement for a project. Confusing these two can lead to significant misunderstandings in a job interview or academic setting.

Misuse of 'Specifying'
Sometimes people use the gerund 'specifying' when they should use the noun 'specification'. For example, 'The specifying was clear' is incorrect; it should be 'The specification was clear'.

Incorrect: The specification of his job is very narrow. (Correct: The scope or specialization of his job is very narrow.)

Finally, be careful with the word 'specs'. While it is very common in informal speech, you should avoid it in formal writing. In a contract, thesis, or official report, always use the full word 'specification' or 'specifications'. Using the abbreviation can make your writing seem lazy or overly casual. Also, remember that 'specs' can also be a slang term for 'spectacles' (glasses) in some regions, though this is becoming less common. Always consider your audience; if you are talking to a group of engineers, 'specs' is fine, but if you are writing a formal proposal to a government agency, stick to the full word to maintain a professional tone.

Overuse
Don't use 'specification' for every list. If you are making a grocery list, it's just a 'list'. Using 'specification' for simple things can sound pretentious or jokingly over-formal.

Incorrect: Here is the specification for the party snacks. (Correct: Here is the list of snacks for the party.)

Incorrect: The specification of the movie was boring. (Correct: The plot or description of the movie was boring.)

Incorrect: He has a specification in biology. (Correct: He has a specialization in biology.)

While specification is a very specific word (pun intended), there are several alternatives you can use depending on the context. Understanding the nuances between these words will help you choose the most appropriate one for your needs. For instance, 'requirement' is a broader term that can include specifications but also covers less technical needs. 'Detail' is a more general word for a small part of something. 'Blueprint' is often used metaphorically for a plan, while 'standard' refers to a level of quality or a rule that must be followed. Let's look at how these words compare to 'specification'.

Specification vs. Requirement
A requirement is what is needed ('The car must be fast'). A specification is the technical detail of that requirement ('The car must reach 100km/h in 4 seconds'). Specifications are the 'how', while requirements are the 'what'.

The user requirement was for a portable device, so the technical specification limited the weight to 500 grams.

Another close synonym is 'parameter'. In scientific or mathematical contexts, a parameter is a numerical or other measurable factor that forms one of a set that defines a system or sets the conditions of its operation. While a specification is a document, a parameter is one of the specific values within that document. For example, 'temperature' is a parameter, and '100 degrees Celsius' is the specification for that parameter. 'Criterion' (plural: criteria) is another alternative, usually used when evaluating something. You might say, 'The main criterion for the job is a degree in engineering,' but the 'specification' would list the exact degree and years of experience needed.

Specification vs. Standard
A standard is a widely accepted specification. For example, the 'specification' for your specific house might follow the 'national building standards'. Standards are universal; specifications are often project-specific.

The engineer had to ensure the custom specification didn't violate any industry standards.

In the world of art and design, you might use 'brief' instead of specification. A 'design brief' is a document given to a creative person that outlines the goals and constraints of a project. While a specification is very technical, a brief is often more about the 'feel' and 'message' of the work. However, once the design moves into production, the brief is converted into a technical specification. Finally, 'stipulation' is a word used in legal contexts to describe a specific requirement in an agreement. 'The contract included a stipulation that the work must be finished by June.' This is very similar to a specification but focuses on the legal obligation rather than the technical detail.

Summary Table
Requirement (General need) | Specification (Technical detail) | Parameter (Measurable factor) | Criterion (Evaluation rule) | Stipulation (Legal condition).

The specification for the new engine was so strict that only one manufacturer could meet it.

We need to review the specification for the user interface to make it more intuitive.

The architect's specification called for triple-glazed windows to improve energy efficiency.

How Formal Is It?

Formal

""

Neutral

""

Informal

""

Child friendly

""

Slang

""

Fun Fact

The root of the word is 'species', which originally meant 'appearance' or 'kind'. So, a specification is literally a way of describing the 'kind' or 'appearance' of something in great detail.

Pronunciation Guide

UK /ˌspes.ɪ.fɪˈkeɪ.ʃən/
US /ˌspes.ə.fəˈkeɪ.ʃən/
spe-ci-fi-CA-tion
Rhymes With
education information application organization communication celebration medication foundation
Common Errors
  • Pronouncing it as 'speci-fiction' (like a story).
  • Putting the stress on the first syllable.
  • Confusing it with 'specialization'.
  • Mumbling the 'fi' syllable.
  • Pronouncing the 'c' as a 'k' sound in the wrong place.

Difficulty Rating

Reading 3/5

The word is long but its meaning is usually clear from the context of products or projects.

Writing 4/5

Spelling the word correctly and using it in the right technical context can be challenging.

Speaking 3/5

The pronunciation is rhythmic and easy to master with practice.

Listening 2/5

It is a distinct-sounding word that is easy to recognize in conversation.

What to Learn Next

Prerequisites

specific detail list plan rule

Learn Next

implementation compliance standardization parameter blueprint

Advanced

ontological interoperability stipulation granularity normative

Grammar to Know

Noun Compounds

Technical specification, design specification, product specification.

Prepositional Phrases

The specification for the bridge; the specification of the materials.

Countable Nouns

One specification, two specifications.

Adjective Placement

A detailed specification; a rigid specification.

Passive Voice with Specifications

The specification was approved by the board.

Examples by Level

1

The phone specification is on the box.

La spécification du téléphone est sur la boîte.

Noun used as a subject.

2

I like the specification of this car.

J'aime les caractéristiques de cette voiture.

Noun used with a prepositional phrase.

3

Read the specification for the toy.

Lisez la notice du jouet.

Imperative sentence using the noun.

4

Is there a specification for this task?

Y a-t-il une consigne pour cette tâche ?

Interrogative sentence.

5

The specification says it is waterproof.

La fiche technique dit qu'il est étanche.

Noun as the subject of the verb 'says'.

6

This is a simple specification.

C'est une spécification simple.

Noun with an adjective.

7

Check the specification before you buy.

Vérifiez la fiche technique avant d'acheter.

Noun as the object of 'check'.

8

The computer specification is very high.

La configuration de l'ordinateur est très performante.

Noun as a subject with a predicate adjective.

1

The architect sent the specification for the new kitchen.

L'architecte a envoyé le descriptif de la nouvelle cuisine.

Noun followed by a prepositional phrase 'for'.

2

We must follow the specification exactly.

Nous devons suivre scrupuleusement le cahier des charges.

Noun as the object of the verb 'follow'.

3

Does the new model have a better specification?

Le nouveau modèle a-t-il de meilleures caractéristiques ?

Countable noun in a question.

4

The specification includes the color and the size.

Le descriptif comprend la couleur et la taille.

Noun as a subject with the verb 'includes'.

5

He wrote a specification for the software update.

Il a rédigé une spécification pour la mise à jour du logiciel.

Indefinite article with the noun.

6

The building specification was very long.

Le descriptif de construction était très long.

Noun as a subject with a past tense verb.

7

You can find the specification on our website.

Vous pouvez trouver la fiche technique sur notre site web.

Noun as the object of 'find'.

8

The team agreed on the project specification.

L'équipe s'est mise d'accord sur le cahier des charges du projet.

Noun as the object of the preposition 'on'.

1

The technical specification outlines the required materials.

La spécification technique décrit les matériaux requis.

Compound noun phrase 'technical specification'.

2

The product was rejected because it did not meet the specification.

Le produit a été refusé car il ne correspondait pas au cahier des charges.

Common collocation 'meet the specification'.

3

We need to revise the specification before the deadline.

Nous devons réviser le descriptif avant la date limite.

Infinitive phrase using the noun.

4

The specification for the bridge was extremely detailed.

Le cahier des charges du pont était extrêmement détaillé.

Noun as a subject with an intensifying adverb.

5

The client requested a change in the design specification.

Le client a demandé une modification du descriptif de conception.

Compound noun phrase 'design specification'.

6

The software was built according to the original specification.

Le logiciel a été conçu conformément au cahier des charges initial.

Prepositional phrase 'according to'.

7

Is there a specification for the minimum battery life?

Existe-t-il une spécification pour l'autonomie minimale de la batterie ?

Interrogative sentence with a complex prepositional phrase.

8

The specification of the engine is better than we expected.

Les caractéristiques du moteur sont meilleures que ce que nous espérions.

Noun as a subject in a comparative sentence.

1

The functional specification describes how the system should behave.

La spécification fonctionnelle décrit comment le système doit se comporter.

Technical term 'functional specification'.

2

The contractor failed to adhere to the strict specification.

L'entrepreneur n'a pas respecté le cahier des charges strict.

Formal verb 'adhere to' with the noun.

3

The person specification for the role includes leadership experience.

Le profil de poste pour ce rôle inclut une expérience en leadership.

HR term 'person specification'.

4

The specification must be finalized before we can start production.

Le descriptif doit être finalisé avant que nous puissions lancer la production.

Passive voice 'must be finalized'.

5

There is a slight deviation from the specification in the final product.

Il y a un léger écart par rapport au cahier des charges dans le produit final.

Noun used with 'deviation from'.

6

The specification of the materials was dictated by safety regulations.

Le choix des matériaux a été dicté par les règles de sécurité.

Passive voice with an agent 'by safety regulations'.

7

We need to ensure that the specification is clear and unambiguous.

Nous devons nous assurer que le descriptif est clair et sans ambiguïté.

Noun followed by two adjectives.

8

The specification for the project was hundreds of pages long.

Le cahier des charges du projet faisait des centaines de pages.

Noun as a subject with a quantitative description.

1

The architectural specification defines the structural integrity of the building.

Le descriptif architectural définit l'intégrité structurelle du bâtiment.

Formal academic usage.

2

A lack of clear specification often leads to scope creep in project management.

L'absence de spécification claire conduit souvent à une dérive des objectifs en gestion de projet.

Noun as the object of 'lack of'.

3

The specification of the protocol ensures interoperability between devices.

La spécification du protocole garantit l'interopérabilité entre les appareils.

Technical usage in computer science.

4

The legal team reviewed the specification to ensure compliance with international law.

L'équipe juridique a examiné le descriptif pour s'assurer de la conformité au droit international.

Noun as the object of 'reviewed'.

5

The specification of the experimental parameters was crucial for the study's validity.

La définition des paramètres expérimentaux était cruciale pour la validité de l'étude.

Noun used in a scientific research context.

6

The contractor was sued for failing to meet the rigorous specification of the contract.

L'entrepreneur a été poursuivi pour ne pas avoir respecté les clauses rigoureuses du contrat.

Noun with the adjective 'rigorous'.

7

The specification for the new aircraft includes advanced stealth capabilities.

Le cahier des charges du nouvel avion inclut des capacités de furtivité avancées.

Noun as a subject in a complex sentence.

8

The specification of the user requirements was the first step in the design process.

La définition des besoins des utilisateurs a été la première étape du processus de conception.

Noun as a subject in a chronological description.

1

The specification of the ontological framework was necessary for the philosophical inquiry.

La définition du cadre ontologique était nécessaire à l'enquête philosophique.

Highly abstract and academic usage.

2

The formal specification of the logic system allowed for automated verification.

La spécification formelle du système logique a permis une vérification automatisée.

Specialized usage in logic and mathematics.

3

The specification of rights within the treaty was a subject of intense diplomatic debate.

La définition des droits au sein du traité a fait l'objet d'un débat diplomatique intense.

Usage in political science and international relations.

4

The meticulous specification of the character's internal monologue enriched the novel's depth.

La définition méticuleuse du monologue intérieur du personnage a enrichi la profondeur du roman.

Metaphorical usage in literary criticism.

5

The specification of the chemical composition was precise to the parts-per-billion level.

La définition de la composition chimique était précise au niveau des parties par milliard.

Technical usage in chemistry.

6

The specification of the software's architecture was a masterpiece of engineering design.

La conception de l'architecture du logiciel était un chef-d'œuvre de design technique.

Noun as a subject with a laudatory predicate.

7

The specification of the urban planning goals aimed at long-term sustainability.

La définition des objectifs d'urbanisme visait la durabilité à long terme.

Usage in urban planning and environmental science.

8

The specification of the fiscal policy was intended to curb inflationary pressures.

La définition de la politique budgétaire visait à freiner les pressions inflationnistes.

Usage in economics and public policy.

Common Collocations

technical specification
meet the specification
design specification
detailed specification
functional specification
rigid specification
preliminary specification
standard specification
exact specification
written specification

Common Phrases

built to specification

— Constructed exactly according to the provided plans and requirements.

The engine was built to specification and performed perfectly.

within specification

— Operating or existing within the allowed limits or requirements.

The noise levels are well within specification.

out of specification

— Not meeting the required standards or measurements.

The batch of steel was rejected for being out of specification.

to the letter of the specification

— Following the requirements exactly as they are written, without any changes.

He followed the specification to the letter.

change specification

— To modify the requirements of a project or product.

We had to change the specification halfway through the build.

draft a specification

— To write the first version of a requirements document.

The engineer is drafting a specification for the new bridge.

final specification

— The last, approved version of the requirements.

Wait for the final specification before ordering materials.

performance specification

— A document describing how a product must perform rather than how it is built.

The performance specification requires the car to reach 60mph in 5 seconds.

material specification

— A list of the exact materials to be used in a project.

The material specification calls for high-grade aluminum.

open specification

— A requirement that allows for different brands or types of products to be used.

The city used an open specification to encourage more bids from contractors.

Often Confused With

specification vs description

A description is general; a specification is precise and technical.

specification vs specialization

A specialization is a field of expertise; a specification is a requirement.

specification vs specifics

Specifics are the details themselves; a specification is the document or standard.

Idioms & Expressions

"up to spec"

— Meeting the required standards or quality. Often used informally.

The new employee's work isn't quite up to spec yet.

informal
"on spec"

— Doing something without a firm order, hoping it will be successful or sold later.

He built the house on spec, hoping someone would buy it.

neutral
"specs of a..."

— Referring to the technical details of a specific item.

What are the specs of your new laptop?

informal
"the spec sheet"

— The document that lists all the specifications.

Check the spec sheet for the dimensions.

neutral
"spec it out"

— To define all the details and requirements for something.

We need to spec it out before we hire a developer.

informal
"to spec"

— Exactly as required by the specification.

The parts were manufactured to spec.

neutral
"over-spec"

— To make something with higher requirements than necessary, often wasting money.

They over-specced the office building with expensive marble.

informal
"under-spec"

— To make something with lower requirements than needed, often leading to failure.

The bridge was under-specced for the amount of traffic it carries.

informal
"lock the spec"

— To finalize the requirements so that no more changes can be made.

We need to lock the spec by Monday to stay on schedule.

business
"spec-driven"

— A process where every step is guided by the original specification.

Our manufacturing process is entirely spec-driven.

technical

Easily Confused

specification vs Specialization

They sound similar and both start with 'spec'.

Specialization refers to a person's area of expertise or a specific branch of a subject. Specification refers to a detailed requirement for a project or product.

His specialization is in AI, but he wrote the specification for the database.

specification vs Description

Both involve telling someone about something.

A description is often subjective and qualitative (e.g., 'a beautiful car'). A specification is objective and quantitative (e.g., 'a car with 18-inch alloy wheels').

The description was poetic, but the specification was technical.

specification vs Requirement

They are often used in the same context.

A requirement is a high-level need ('I need a way to travel'). A specification is the detailed way that need is met ('I need a bicycle with 21 gears').

The requirement was for speed, so the specification included a turbocharger.

specification vs Standard

Both relate to quality and rules.

A standard is a universal rule (e.g., ISO 9001). A specification is a specific set of rules for one particular project or product.

The project specification must follow the national safety standard.

specification vs Specifics

They share the same root and meaning of 'details'.

'Specifics' is a plural noun used informally to mean 'the details'. 'Specification' is a more formal noun referring to the act of specifying or the document itself.

Let's get down to the specifics of the specification.

Sentence Patterns

A1

The [noun] specification is [adjective].

The phone specification is good.

A2

Please read the [adjective] specification.

Please read the project specification.

B1

The product must meet the [adjective] specification.

The product must meet the technical specification.

B2

There was a [noun] from the [adjective] specification.

There was a deviation from the original specification.

C1

The specification of [noun] is crucial for [noun].

The specification of materials is crucial for safety.

C2

The formal specification of [abstract noun] allows for [noun].

The formal specification of logic allows for verification.

B1

According to the specification, the [noun] should be [adjective].

According to the specification, the wall should be blue.

B2

We are currently drafting the [adjective] specification for [noun].

We are currently drafting the functional specification for the app.

Word Family

Nouns

Verbs

Adjectives

Related

How to Use It

frequency

Very common in professional, technical, and consumer contexts.

Common Mistakes
  • Using 'specification' to mean 'specialization'. He has a specialization in civil engineering.

    A specialization is an area of expertise. A specification is a requirement for a project. They are not the same thing.

  • Using 'description' for technical requirements. The technical specification requires 10mm steel.

    A description is too general for technical work. Use 'specification' when precision is required.

  • Saying 'specification on' something. The specification for the new bridge is ready.

    The standard preposition to use with specification is 'for' (purpose) or 'of' (content).

  • Using 'specs' in a formal report. The final specification was approved by the committee.

    'Specs' is an informal abbreviation and should be avoided in professional writing.

  • Confusing 'specification' with 'specifics'. Can you give me the specifics of the specification?

    'Specifics' are the individual details; 'specification' is the overall document or set of standards.

Tips

Be Precise

Use 'specification' when you want to emphasize that the details are mandatory and technical. It sounds much more professional than just saying 'the details' or 'the list'.

Preposition Choice

Remember to use 'specification for' when talking about a project or goal, and 'specification of' when talking about the components or materials within it.

Learn the 'Specs'

In the tech world, 'specs' is the most common way to talk about hardware. Knowing this will help you understand tech reviews and product pages much better.

Job Specs

When applying for a job, look for the 'person specification' section. Tailor your resume to match the exact skills and qualifications listed there to increase your chances of getting an interview.

Meet the Spec

In manufacturing, 'meeting the spec' is the ultimate goal. Use this phrase in business meetings to show you are focused on quality and following the rules.

Avoid Abbreviations

Even though 'specs' is common, never use it in a formal report or a cover letter. Always write out the full word 'specification' to show respect for the reader.

Stress the 'CA'

The most important part of the pronunciation is the 'CA' syllable. If you get that right, people will understand you even if the other syllables are a bit messy.

Word Family

Connect 'specification' to 'specify' (the verb) and 'specific' (the adjective). This makes it easier to remember all three words at once.

Global Standards

Understand that specifications are often international. If you work in a global company, the specifications you follow might be the same as those in another country.

Look for Clues

When you see 'specification', look for nearby words like 'technical', 'design', 'materials', or 'requirements'. These will help you understand exactly what kind of spec is being discussed.

Memorize It

Mnemonic

Think of 'SPEC' as 'Special Precise Exact Criteria'. A SPECification gives you the SPECial details you need to be SPECific.

Visual Association

Imagine a magnifying glass looking at a very long list of numbers and materials next to a blueprint of a house.

Word Web

Requirements Blueprint Details Technical Standard Dimensions Materials Instructions

Challenge

Try to write a 5-item specification for your perfect breakfast. Use words like 'dimensions', 'temperature', and 'materials'.

Word Origin

The word 'specification' comes from the Late Latin 'specificationem', which is a noun of action from the past-participle stem of 'specificare'. This Latin verb means 'to mention particularly' or 'to describe in detail'. It entered the English language in the mid-17th century.

Original meaning: To name or distinguish by species; to give a detailed description.

Indo-European -> Italic -> Latin -> French -> English

Cultural Context

There are no major sensitivities, but be aware that in some contexts, 'specification' can sound overly bureaucratic or cold.

In the US and UK, 'specs' is very common in business and tech, but 'specification' is always used in formal documents.

The 'Functional Specification' document is a famous part of the software development lifecycle (SDLC). The 'Mil-Spec' (Military Specification) is a famous standard for high-quality, durable goods in the US. The 'IEEE Specifications' are the world standards for electrical and electronic engineering.

Practice in Real Life

Real-World Contexts

Buying a Computer

  • What are the specs?
  • Check the processor specification.
  • Does it meet my requirements?
  • Compare the specifications.

Construction Project

  • Follow the spec book.
  • Is this material to specification?
  • We need a change in the spec.
  • The architect wrote the specification.

Software Development

  • Draft the functional specification.
  • The spec is locked.
  • This feature isn't in the specification.
  • Review the technical spec.

Job Application

  • Read the person specification.
  • Do I meet the job specification?
  • The spec requires five years of experience.
  • Update the job spec.

Manufacturing

  • The part is out of specification.
  • Maintain strict specifications.
  • Quality control checked the spec.
  • Built to the customer's specification.

Conversation Starters

"What are the most important specifications you look for when buying a new smartphone?"

"Have you ever worked on a project where the specification was not clear enough?"

"Do you think a 'person specification' for a job is more important than the job description itself?"

"How do you feel when a product you buy doesn't meet the specifications promised in the ad?"

"In your opinion, which industry has the strictest specifications for safety?"

Journal Prompts

Write about a time you tried to build or make something without a clear specification. What happened?

Describe your 'specification' for a perfect day. Include details about the weather, activities, and food.

If you were to write a specification for a new invention, what would it be and what details would you include?

Reflect on the importance of precision in communication. How can a clear specification prevent arguments?

Think about your dream job. Write a 'person specification' for yourself that shows why you are the perfect fit.

Frequently Asked Questions

10 questions

'Spec' is simply a shortened, informal version of 'specification'. It is commonly used in speech and casual emails among professionals, but you should always use the full word 'specification' in formal documents, contracts, or academic papers. For example, you might ask a colleague for the 'specs', but the title of the document should be 'Technical Specification'.

Yes, 'specifications' is very common. It is used when referring to a list of multiple requirements. For example, 'The specifications for the new building include its height, the materials for the walls, and the type of windows.' If you are talking about the document as a whole, you can use the singular 'specification'.

This phrase means that a product or project was completed exactly according to the provided instructions and requirements. It is a sign of high quality and successful project management. If something is 'not to specification', it means there is a mistake or a deviation from the plan, which often leads to the product being rejected.

Not exactly. A job description outlines the tasks and responsibilities of the role (what the person will do). A job specification (or person specification) outlines the qualities, skills, and qualifications the ideal candidate should have (who the person should be). Most job ads include both.

You can use it as a subject or an object. For example: 'The specification is clear' (subject) or 'We followed the specification' (object). It is often followed by the prepositions 'for' or 'of', such as 'the specification for the engine' or 'the specification of the materials'.

In software development, a functional specification is a document that describes how a system should work from the user's perspective. It lists all the features and functions the software must have. It is different from a 'technical specification', which describes how the software will be built (the code, the database, etc.).

Yes, it is very common in professional and technical environments. It is a CEFR B1 level word, meaning intermediate learners should know it. You will encounter it frequently if you work in business, engineering, IT, or construction.

Common synonyms include 'requirement', 'detail', 'blueprint', 'standard', and 'parameter'. However, 'specification' is the most precise word for a technical list of requirements. In legal contexts, 'stipulation' is also a close synonym.

There isn't one direct opposite, but words like 'vagueness', 'ambiguity', or 'generalization' represent the lack of a specification. If a project has no specification, it is often described as being 'unstructured' or 'poorly defined'.

It is pronounced /ˌspes.ɪ.fɪˈkeɪ.ʃən/. The main stress is on the fourth syllable, 'ka'. It has five syllables: spe-ci-fi-ca-tion. Practice saying it slowly and then speed up as you get more comfortable.

Test Yourself 180 questions

writing

Write a sentence using 'specification' and 'phone'.

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writing

Write a sentence using 'specification' and 'architect'.

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writing

Explain why a technical specification is important.

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writing

Describe a 'person specification' for your dream job.

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writing

Discuss the relationship between specifications and quality control.

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writing

Write a sentence using 'specification' and 'car'.

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writing

Write a sentence using 'specification' and 'project'.

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writing

Write a sentence using 'meet the specification'.

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writing

Write a sentence using 'functional specification'.

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writing

Write a paragraph about the importance of clear specifications in software development.

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writing

Write a sentence using 'specification' and 'box'.

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writing

Write a sentence using 'specification' and 'team'.

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writing

Write a sentence using 'according to the specification'.

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writing

Write a sentence using 'design specification'.

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writing

Write a sentence using 'formal specification'.

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writing

Write a sentence using 'specification' and 'high'.

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writing

Write a sentence using 'specification' and 'read'.

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writing

Write a sentence using 'technical specification'.

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writing

Write a sentence using 'deviation from specification'.

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writing

Write a sentence using 'ontological specification'.

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speaking

Say the word 'specification' three times.

Read this aloud:

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speaking

Say: 'Please read the specification.'

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speaking

Say: 'The product meets the technical specification.'

Read this aloud:

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speaking

Say: 'We need to finalize the design specification.'

Read this aloud:

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speaking

Say: 'The formal specification ensures interoperability.'

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speaking

Say: 'The phone specs are good.'

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speaking

Say: 'The architect sent the specs.'

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speaking

Say: 'Check the material specification.'

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speaking

Say: 'The person specification is very strict.'

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speaking

Say: 'Scope creep is caused by poor specification.'

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speaking

Say: 'This is the specification.'

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speaking

Say: 'Follow the specification exactly.'

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speaking

Say: 'Revise the project specification.'

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speaking

Say: 'There is a deviation from spec.'

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speaking

Say: 'The legal team reviewed the spec.'

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speaking

Say: 'High specification computer.'

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speaking

Say: 'The building specification is long.'

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speaking

Say: 'Built to specification.'

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speaking

Say: 'Within specification limits.'

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speaking

Say: 'Meticulous specification of details.'

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listening

Listen and write the word: 'Specification'.

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listening

Listen and write the word: 'Specifications'.

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listening

Listen and write: 'Technical specification'.

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listening

Listen and write: 'Functional specification'.

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listening

Listen and write: 'Formal specification'.

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listening

Listen and write: 'Phone specs'.

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listening

Listen and write: 'Project spec'.

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listening

Listen and write: 'Meet the spec'.

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listening

Listen and write: 'Design spec'.

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listening

Listen and write: 'Scope creep'.

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listening

Listen and write: 'High spec'.

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listening

Listen and write: 'Long spec'.

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listening

Listen and write: 'Revise spec'.

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listening

Listen and write: 'Deviation spec'.

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listening

Listen and write: 'Interoperability'.

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/ 180 correct

Perfect score!

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