At the A1 level, 'sequence' is a big word, but the idea is simple. It means to 'put things in order.' Imagine you have numbers 1, 2, and 3. If you put them in that order, you are sequencing them. You can sequence your morning: first you wake up, then you eat breakfast, then you go to school. Teachers use this word when they want you to show the order of a story. They might give you three pictures and ask you to sequence them (put picture 1 first, then picture 2, then picture 3). It is about 'first, next, and last.' Even if you don't use the word yourself yet, knowing it means 'order' will help you follow instructions in class.

At the A2 level, you can start using 'sequence' to talk about simple tasks or stories. To sequence something is to arrange it so it makes sense. For example, when you are cooking, you must sequence the steps. You can't eat the cake before you bake it! You can say, 'I need to sequence the photos from my vacation' to mean you want to put them in the order they happened. This word is more formal than 'put in order,' so using it makes your English sound a little more professional. It is very useful for talking about schedules, daily routines, and basic stories where one thing happens after another.

At the B1 level, 'sequence' becomes a useful tool for describing processes at work or in school. You might use it to talk about organizing a project or planning a presentation. For example, 'We need to sequence the slides in our presentation so the introduction comes first.' It implies that you are thinking carefully about the order. You also start to see this word in science or history lessons. If you are talking about a timeline, you are sequencing events. Using 'sequence' shows that you understand that the order of things is important for the final result. It is a step up from 'organize' because it focuses specifically on the *progression* of things.

At the B2 level, 'sequence' is a key academic and professional verb. You should be comfortable using it in technical contexts, such as biology (sequencing DNA) or computer science (sequencing code). At this level, the word implies a high degree of precision. It’s not just about putting things in order; it’s about determining the *exact* order required for a system to function or for a discovery to be made. You might use it in a business meeting: 'We need to sequence the product launch to target different regions at the right time.' It suggests a strategic approach to time and logic. You also understand that 'sequencing' can be a complex process that requires analysis and careful planning.

At the C1 level, you use 'sequence' to describe complex, multi-layered systems. You might discuss the sequencing of legal arguments in a court case or the sequencing of pedagogical strategies in a curriculum. The word takes on a nuance of 'orchestration.' It’s about how different elements interact over time to create a specific outcome. You can use it metaphorically as well, such as sequencing one’s career moves for maximum impact. At this level, you are also aware of the word's role in advanced fields like bioinformatics and how the ability to sequence information is a form of power and knowledge. Your usage reflects an understanding of both the literal and the abstract implications of order.

At the C2 level, 'sequence' is a precise instrument in your vocabulary. You can use it to discuss the philosophical implications of chronological versus logical sequencing. You might analyze how a novelist sequences information to manipulate the reader's emotional response or how a government sequences economic reforms to maintain social stability. You are adept at using the word in highly specialized fields, from genomic ethics to high-frequency trading algorithms. For a C2 speaker, 'sequence' is not just a verb of arrangement; it is a verb of structural creation. You understand the profound impact that the order of elements has on the meaning, function, and perception of any system, whether it is biological, digital, or social.

sequence in 30 Seconds

  • To sequence is to arrange items in a logical order.
  • It is commonly used in science to decode DNA or proteins.
  • In business, it helps optimize processes and production lines.
  • It is a formal and precise alternative to 'organize' or 'sort'.

To sequence is a verb that describes the deliberate and methodical arrangement of items, events, or data into a specific, logical order. While it sounds simple, the act of sequencing is fundamental to human cognition, scientific discovery, and industrial efficiency. When you sequence something, you are not merely putting things in a line; you are establishing a relationship between the parts and the whole, ensuring that 'A' leads to 'B' in a way that makes sense or achieves a goal. In the professional world, this word is a staple of project management, computer science, and molecular biology.

The Chronological Aspect
In history and storytelling, to sequence involves placing events on a timeline. Historians sequence archaeological finds to understand the rise and fall of civilizations. Filmmakers sequence shots to create a coherent narrative flow in a montage.

The lead investigator worked tirelessly to sequence the events leading up to the breach, identifying the exact second the security protocols were bypassed.

The Scientific Revolution
In the 21st century, the most common high-level use of 'sequence' is in genetics. To sequence DNA means to determine the precise order of the four chemical building blocks—called bases—that make up the DNA molecule. This allows scientists to 'read' the genetic code of an organism.

People use this word when they want to emphasize the importance of the *order* itself. For instance, in music production, a composer might sequence a series of digital notes to create a melody. In education, teachers sequence lessons to ensure that students master foundational concepts before moving to complex ones. The term suggests a planned progression rather than a random assortment. Whether you are sequencing a set of instructions for a robot or sequencing the steps of a complex surgical procedure, the focus is on the integrity of the chain. Without proper sequencing, the logic of the system collapses.

By sequencing the arrival of materials, the factory reduced downtime by forty percent.

Computational Logic
Programmers sequence code to execute commands in a specific priority. If the sequence is wrong, the program crashes or produces errors. This is known as the control flow of the application.

The algorithm was designed to sequence user requests based on urgency and available bandwidth.

Furthermore, sequencing is vital in the field of linguistics and language learning. To communicate effectively, one must sequence words according to the rules of syntax. If you sequence your words poorly, the meaning becomes obscured. In high-stakes environments like aviation or emergency medicine, the ability to sequence actions correctly can be the difference between life and death. Pilots must sequence their pre-flight checks with absolute accuracy to ensure the safety of the aircraft. In essence, to sequence is to bring order to chaos, creating a path that others can follow or that machines can execute.

The choreographer had to sequence the dance movements to match the accelerating tempo of the orchestral score.

Scientists were finally able to sequence the entire genome of the rare orchid, revealing its unique evolutionary history.

Mastering the usage of sequence as a verb requires an understanding of its transitive nature; it almost always requires a direct object—the thing being ordered. You don't just 'sequence'; you sequence *something*. This section explores the grammatical patterns and stylistic nuances of the word across various contexts.

Direct Object Placement
The most common structure is [Subject] + [sequence] + [Object]. For example: 'The software sequences the files automatically.' Here, the files are the object being arranged.

It is crucial to sequence the historical documents by date to provide a clear context for the exhibition.

Another frequent use is in the passive voice, especially in scientific and technical writing. This shifts the focus from the person doing the action to the thing being acted upon. For instance, 'The DNA samples were sequenced in a laboratory in Switzerland.' This construction is preferred when the identity of the technician is less important than the result of the sequencing process.

Once the data has been sequenced, we can begin the comparative analysis across different demographic groups.

Infinitive and Gerund Forms
The infinitive form ('to sequence') often follows verbs like 'need,' 'attempt,' or 'plan.' The gerund form ('sequencing') is used as a noun to describe the activity itself: 'Sequencing the genome took over a decade of international cooperation.'

When using the word in a business context, it often pairs with adverbs that describe the method or efficiency of the ordering. You might 'carefully sequence' a rollout, 'logically sequence' a presentation, or 'efficiently sequence' a production line. These modifiers add depth to the action, suggesting a specific quality to the arrangement.

The curriculum designers chose to sequence the modules from simple arithmetic to complex calculus.

Scientific Precision
In biology, 'sequence' is almost always followed by biological terms like 'gene,' 'protein,' 'nucleotide,' or 'strain.' For example: 'They are trying to sequence the latest variant of the virus.'

Could you sequence these tasks so that the most time-consuming ones are completed first?

Finally, consider the prepositional phrases that often accompany 'sequence.' We sequence items *by* date, *according to* size, *in terms of* priority, or *based on* specific criteria. These phrases clarify the logic being applied to the order. Without these clarifications, the listener might know *that* you are ordering things, but not *how* or *why*.

The editor had to sequence the interview clips to tell a compelling story about the athlete's journey.

If we sequence the payments correctly, we can avoid any late fees this month.

The word sequence is not just a textbook term; it is actively used in high-tech industries, creative studios, and academic environments. Understanding where you are likely to encounter it will help you use it more naturally.

In the Laboratory
Biologists and geneticists use 'sequence' daily. You'll hear them talk about 'Next-Generation Sequencing' (NGS) or discuss the need to 'sequence the genome of a new pathogen.' In this world, the word is synonymous with 'decoding life.'

'We need to sequence these DNA samples by Monday if we want to present the data at the conference.'

In the world of filmmaking and video editing, 'sequence' is a fundamental verb. An editor doesn't just put clips together; they sequence them. They might talk about 'sequencing the opening montage' or 'sequencing the action scenes' to ensure the pacing is correct. Here, the word carries a creative weight, implying a rhythmic and narrative intentionality.

In Software Development
Developers use the term when discussing how a program handles tasks. If multiple operations are happening at once, they might need to 'sequence the asynchronous calls' to make sure the data is saved before the next step starts. It's about logic and timing.

In the corporate sector, particularly in supply chain management and logistics, 'sequence' is used to describe the flow of goods. A manager might say, 'We need to sequence the deliveries based on the driver's route to minimize fuel consumption.' In this context, sequencing is about optimization and cost-saving. It's a pragmatic, efficiency-driven use of the word.

'The system will sequence the orders automatically based on the shipping priority chosen by the customer.'

In Music and Sound Design
Electronic music producers use 'sequencers' (the noun) to 'sequence' (the verb) beats and melodies. If you are in a studio, you might hear someone say, 'Let's sequence the bassline first, then layer the drums on top.'

The composer spent hours sequencing the digital synthesizers to create the haunting atmosphere of the film's score.

Lastly, in education and psychology, researchers 'sequence' learning materials or behavioral interventions. They analyze how the order of information affects a student's ability to retain it. This academic use focuses on cognitive load and the structural integrity of knowledge acquisition. If you are reading a pedagogical journal, you will see 'sequence' used to describe the strategic arrangement of a curriculum.

To improve retention, we must sequence the vocabulary words from high-frequency to low-frequency usage.

The automated assembly line is programmed to sequence the parts so that the chassis is completed before the engine is installed.

Even for advanced learners, the verb sequence can be tricky because of its close relationship with other words and its specific technical connotations. Here are the most common pitfalls to avoid.

Confusing 'Sequence' with 'Succeed'
While 'sequence' involves putting things in order, 'succeed' means to follow after someone or something. You don't 'sequence' a king; you 'succeed' him. However, you *can* sequence the list of kings in a history book.

Incorrect: He will sequence the manager next year.
Correct: He will succeed the manager next year.

Another common error is using 'sequence' when 'series' or 'order' (the nouns) are more appropriate. Remember that 'sequence' as a verb describes an action. If you are talking about the result, you are likely looking for the noun. For example, 'The sequence of events was confusing' (noun), versus 'We need to sequence the events' (verb).

Overcomplicating Simple Tasks
As mentioned before, using 'sequence' for trivial daily chores can sound unnatural or overly formal. If you tell a friend you are 'sequencing your grocery list,' it sounds like you are treating your shopping like a scientific experiment. Stick to 'organize' or 'sort' for casual contexts.

In the scientific domain, a common mistake is using 'sequence' to mean 'identify' or 'find.' While sequencing does help identify something, they are not the same thing. To sequence is specifically to find the *order* of the components. You might identify a virus through testing, but you sequence it to understand its genetic makeup.

Incorrect: We need to sequence where the keys are.
Correct: We need to locate where the keys are.

Transitivity Errors
Learners sometimes forget the direct object. You cannot say 'The machine sequences very well' without implying what it is sequencing. Always ensure the object of the sequencing is clear from the context.

Correct: The lab is equipped to sequence up to five hundred samples a day.

Finally, watch out for the spelling. Because it ends in '-ence,' some might try to spell the verb form as 'sequencing' with an 's' or 'c' confusion. Always remember: the noun and the verb are spelled the same in their base form (sequence), and the 'c' remains consistent throughout all variations (sequences, sequenced, sequencing).

The challenge was to sequence the mathematical proofs in a way that a layperson could understand the logic.

We must sequence the database queries to prevent the server from timing out during peak hours.

Choosing the right word to describe 'putting things in order' depends on the level of precision and the context of the action. While sequence is a powerful verb, several alternatives might better fit your specific needs.

Sequence vs. Arrange
'Arrange' is the most general term. You can arrange flowers (for beauty) or arrange chairs (for a meeting). 'Sequence' is more specific; it implies a logical or functional progression where the order matters for a process to work.

You arrange a bouquet, but you sequence the instructions for a recipe.

Another close relative is 'order.' As a verb, 'order' often implies a hierarchical arrangement (from best to worst, biggest to smallest). 'Sequence' focuses more on the *chain* of items—how one follows another in time or logic, rather than just their rank.

Sequence vs. Catalog
'Catalog' (or 'catalogue') means to make a systematic list of things. When you catalog items, you are recording them. When you sequence them, you are determining the order in which they should appear or be processed.

In technical fields, you might encounter 'index' or 'tabulate.' 'Index' means to create a guide or a searchable order for information. 'Tabulate' means to arrange data into a table or systematic columns. Neither fully captures the 'chain-link' nature of 'sequence,' which emphasizes the flow from one point to the next.

Sequence vs. Sort
'Sort' usually means to group things into categories (e.g., sorting mail into 'bills' and 'letters'). 'Sequence' goes a step further by ordering those items within their categories.

First, we sort the files by department, then we sequence them by the date they were received.

For those in the world of computer science, 'serialize' is a very specific synonym. To serialize data is to convert an object into a sequence of bits so it can be stored or transmitted. This is a highly technical form of sequencing where the order is vital for the data to be 'reconstructed' later. If you are a developer, 'serialize' is often the better word for data handling, while 'sequence' is better for the logic of the code itself.

The historian tried to sequence the fragments of the ancient scroll to reconstruct the original message.

In the final stage of production, we must sequence the quality control checks to ensure no step is missed.

How Formal Is It?

Formal

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Neutral

""

Informal

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Child friendly

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Slang

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Fun Fact

The words 'sequel', 'sequence', and 'suit' (as in a suit of cards) all come from the same Latin root 'sequi' (to follow) because they all involve things following in order!

Pronunciation Guide

UK /ˈsiː.kwəns/
US /ˈsiː.kwəns/
Primary stress on the first syllable: SEE-kwens.
Rhymes With
frequence consequence eloquence subsequence defense (near rhyme) presence (near rhyme) sentence (near rhyme) patience (near rhyme)
Common Errors
  • Pronouncing it as 'sek-wence' (short e in the first syllable).
  • Stress on the second syllable: 'se-QUENCE'.
  • Confusing the 's' and 'c' sounds.
  • Adding an 'i' sound: 'see-kwee-ence'.
  • Dropping the 'w' sound: 'see-kence'.

Difficulty Rating

Reading 4/5

Common in academic and technical texts, but rare in casual fiction.

Writing 5/5

Requires understanding of transitivity and context to use correctly.

Speaking 4/5

Used mostly in professional meetings or scientific discussions.

Listening 3/5

Clear pronunciation, but can be confused with 'consequence' if heard quickly.

What to Learn Next

Prerequisites

order follow next first arrange

Learn Next

consecutive linear chronological structural systematic

Advanced

bioinformatics genomics algorithm syntax taxonomy

Grammar to Know

Transitive Verbs

You must sequence *the files* (object).

Passive Voice in Process Descriptions

The DNA *is sequenced* by a specialized machine.

Gerunds as Subjects

*Sequencing* the data took three weeks.

Infinitives of Purpose

We use this tool *to sequence* the results.

Adverb Placement

The system *automatically* sequences the requests.

Examples by Level

1

Please sequence the numbers from 1 to 10.

Por favor, ordena los números del 1 al 10.

Imperative form of the verb.

2

Can you sequence these three pictures?

¿Puedes ordenar estas tres imágenes?

Question with 'can' for ability.

3

We sequence the story: first, next, and last.

Ordenamos la historia: primero, después y al final.

Present simple for a general action.

4

I sequence my toys by size.

Ordeno mis juguetes por tamaño.

Subject + verb + object + prepositional phrase.

5

The teacher helps us sequence the alphabet.

La maestra nos ayuda a ordenar el alfabeto.

Verb 'help' followed by object and infinitive.

6

Sequence the cards to play the game.

Ordena las cartas para jugar el juego.

Infinitive of purpose 'to play'.

7

First, sequence the steps to wash your hands.

Primero, ordena los pasos para lavarte las manos.

Use of 'first' as a sequence marker.

8

Do you like to sequence your colored pencils?

¿Te gusta ordenar tus lápices de colores?

Gerund/Infinitive after 'like'.

1

She needs to sequence her daily chores.

Ella necesita ordenar sus tareas diarias.

Infinitive after 'needs to'.

2

We sequenced the photos for the album.

Ordenamos las fotos para el álbum.

Past simple tense.

3

It is helpful to sequence your ideas before writing.

Es útil ordenar tus ideas antes de escribir.

Dummy subject 'it' + adjective + infinitive.

4

The chef sequences the ingredients for the soup.

El chef ordena los ingredientes para la sopa.

Third person singular 's'.

5

Can you sequence the events of the movie?

¿Puedes ordenar los eventos de la película?

Direct object 'the events of the movie'.

6

I am sequencing the songs on my playlist.

Estoy ordenando las canciones en mi lista de reproducción.

Present continuous tense.

7

They sequenced the books alphabetically.

Ordenaron los libros alfabéticamente.

Adverb 'alphabetically' modifying the verb.

8

Please sequence the files by date.

Por favor, ordena los archivos por fecha.

Preposition 'by' to show criteria.

1

The manager asked me to sequence the project tasks.

El gerente me pidió que ordenara las tareas del proyecto.

Reporting verb 'asked' + object + infinitive.

2

We must sequence the experiments carefully.

Debemos secuenciar los experimentos con cuidado.

Modal verb 'must' for obligation.

3

Sequencing the data is the first step of the study.

Secuenciar los datos es el primer paso del estudio.

Gerund used as the subject of the sentence.

4

The app sequences your emails based on priority.

La aplicación ordena tus correos electrónicos según la prioridad.

Phrase 'based on' used for criteria.

5

He spent all night sequencing the video clips.

Pasó toda la noche ordenando los clips de video.

Verb 'spend' + time + gerund.

6

The instructions were sequenced to avoid confusion.

Las instrucciones fueron ordenadas para evitar confusiones.

Passive voice 'were sequenced'.

7

How should we sequence the interview questions?

¿Cómo deberíamos ordenar las preguntas de la entrevista?

Modal 'should' for suggestions.

8

The historian is trying to sequence the ancient coins.

El historiador está tratando de ordenar las monedas antiguas.

Present continuous 'is trying to sequence'.

1

Researchers were the first to sequence the human genome.

Los investigadores fueron los primeros en secuenciar el genoma humano.

Infinitive phrase modifying 'the first'.

2

The software can sequence thousands of transactions per second.

El software puede procesar miles de transacciones por segundo.

Ability with 'can'.

3

We need to sequence the production line more efficiently.

Necesitamos secuenciar la línea de producción de manera más eficiente.

Adverb phrase 'more efficiently'.

4

The course is sequenced to build on prior knowledge.

El curso está secuenciado para basarse en conocimientos previos.

Passive voice + infinitive of purpose.

5

Could you sequence the logic of your argument?

¿Podrías ordenar la lógica de tu argumento?

Polite request with 'could'.

6

The virus was sequenced within days of the outbreak.

El virus fue secuenciado a los pocos días del brote.

Passive voice in past simple.

7

The algorithm sequences the search results for the user.

El algoritmo ordena los resultados de búsqueda para el usuario.

Present simple for a functional process.

8

They are sequencing the proteins to find a cure.

Están secuenciando las proteínas para encontrar una cura.

Present continuous for an ongoing action.

1

The legal team must carefully sequence the witnesses' testimonies.

El equipo legal debe ordenar cuidadosamente los testimonios de los testigos.

Use of 'must' + adverb + base verb.

2

The novel sequences events non-linearly to create suspense.

La novela ordena los eventos de forma no lineal para crear suspenso.

Adverb 'non-linearly' modifying the verb.

3

The central bank will sequence the interest rate hikes over the year.

El banco central ordenará las subidas de tipos de interés a lo largo del año.

Future 'will' for planned actions.

4

Sequencing the policy changes is as important as the changes themselves.

Ordenar los cambios de política es tan importante como los cambios mismos.

Gerund subject + 'as...as' comparison.

5

The architect sequenced the rooms to maximize natural light.

El arquitecto ordenó las habitaciones para maximizar la luz natural.

Past simple for a design decision.

6

We are looking for a way to sequence the rollout of the new software.

Estamos buscando una manera de secuenciar el despliegue del nuevo software.

Infinitive after 'looking for a way'.

7

The composer sequenced the motifs to reflect the character's descent into madness.

El compositor ordenó los motivos para reflejar el descenso del personaje a la locura.

Transitive use with abstract objects (motifs).

8

By sequencing the genomic data, we can predict disease susceptibility.

Al secuenciar los datos genómicos, podemos predecir la susceptibilidad a enfermedades.

Preposition 'by' + gerund to show method.

1

The philosopher argued that we sequence our reality through language.

El filósofo argumentó que ordenamos nuestra realidad a través del lenguaje.

That-clause containing the verb.

2

The government’s failure to sequence the economic reforms led to chaos.

El fracaso del gobierno al secuenciar las reformas económicas llevó al caos.

Infinitive as part of a noun phrase subject.

3

How one sequences a narrative determines its epistemological weight.

Cómo se ordena una narrativa determina su peso epistemológico.

Wh-clause as the subject of the sentence.

4

The software attempts to sequence the chaotic data streams into a coherent model.

El software intenta ordenar los flujos de datos caóticos en un modelo coherente.

Infinitive after 'attempts'.

5

The ability to sequence complex operations is a hallmark of high-level intelligence.

La capacidad de secuenciar operaciones complejas es un sello distintivo de la inteligencia de alto nivel.

Infinitive modifying the noun 'ability'.

6

They are sequencing the atmospheric data to understand long-term climate trends.

Están secuenciando los datos atmosféricos para comprender las tendencias climáticas a largo plazo.

Present continuous for high-level research.

7

One must carefully sequence the diplomatic overtures to ensure a peaceful resolution.

Se deben secuenciar cuidadosamente las propuestas diplomáticas para asegurar una resolución pacífica.

Indefinite pronoun 'one' + modal 'must'.

8

The study explores how the brain sequences phonemes during rapid speech.

El estudio explora cómo el cerebro ordena los fonemas durante el habla rápida.

Embedded question with 'how'.

Antonyms

disorganize jumble scramble

Common Collocations

sequence the genome
sequence events
sequence tasks
sequence DNA
logically sequence
chronologically sequence
sequence operations
sequence instructions
sequence the rollout
properly sequence

Common Phrases

sequence of events

— The order in which things happened. Often used with the verb 'to sequence'.

The witness helped us sequence the sequence of events.

next-generation sequencing

— A modern technology for DNA sequencing. A common term in biology.

Next-generation sequencing has changed medicine forever.

sequence of numbers

— A list of numbers in a specific order. You can sequence these numbers.

The computer will sequence the sequence of numbers from lowest to highest.

in sequence

— Happening or organized one after another in a specific order.

The lights flashed in sequence around the sign.

out of sequence

— Not in the correct or expected order.

The pages were bound out of sequence, making the book hard to read.

sequence of operations

— The specific order in which math or computer commands are performed.

Follow the correct sequence of operations to solve the equation.

DNA sequencing

— The process of determining the nucleic acid sequence.

DNA sequencing is vital for modern forensics.

rapid sequencing

— Doing the ordering or decoding process very quickly.

Rapid sequencing is necessary during a viral outbreak.

logical sequence

— An order that makes sense based on reason.

Your essay lacks a logical sequence of ideas.

time sequence

— An order based on when things occurred.

The slides are arranged in a strict time sequence.

Often Confused With

sequence vs succeed

'Succeed' means to follow in a position; 'sequence' means to arrange in order.

sequence vs consequence

'Consequence' is a result; 'sequence' is an order. They share a root but not a meaning.

sequence vs series

'Series' is a noun for a group of things; 'sequence' is the verb for the act of ordering them.

Idioms & Expressions

"get your ducks in a row"

— To organize or sequence your tasks and plans perfectly before starting something.

We need to get our ducks in a row before we sequence the project launch.

informal
"put the cart before the horse"

— To sequence things in the wrong order, doing the later thing before the earlier thing.

Buying the furniture before the house is putting the cart before the horse.

informal
"follow in the footsteps of"

— To sequence your actions based on what someone else did before you.

He followed in the footsteps of his father by becoming a doctor.

neutral
"one thing leads to another"

— A natural or unplanned sequence of events.

We started talking about travel, and one thing led to another, and now we're moving to Italy.

informal
"in the fullness of time"

— When the natural sequence of events has reached the right point.

In the fullness of time, the truth will come out.

formal/literary
"step by step"

— Sequencing actions in a careful, gradual way.

We will solve this problem step by step.

neutral
"the first step is always the hardest"

— Starting the sequence of a difficult task is the most challenging part.

Don't be afraid to start; the first step is always the hardest.

neutral
"a chain reaction"

— A sequence of events where each one causes the next.

The small mistake caused a chain reaction of problems.

neutral
"back to square one"

— Having to restart the entire sequence of a process from the beginning.

The plan failed, so we're back to square one.

informal
"at the end of the day"

— When the entire sequence of events is finished and you look at the final result.

At the end of the day, all that matters is that we tried.

informal

Easily Confused

sequence vs Order

Both involve arrangement.

'Order' is more general and often hierarchical. 'Sequence' is more about a step-by-step progression or technical decoding.

You order a list from A to Z, but you sequence the steps of a chemical reaction.

sequence vs Arrange

Both mean to put things in places.

'Arrange' can be for aesthetic reasons (flowers). 'Sequence' implies a functional necessity to the order.

Arrange the chairs in a circle; sequence the speakers for the event.

sequence vs Sort

Both involve organization.

'Sort' is about grouping into categories. 'Sequence' is about the specific order within or across those groups.

Sort the laundry by color, then sequence the tasks of the day.

sequence vs Prioritize

Both involve choosing an order.

'Prioritize' is specifically based on importance. 'Sequence' can be based on time, logic, size, or any other criteria.

Prioritize your bills, but sequence the payments to match your paycheck.

sequence vs Serialize

Both are technical terms for order.

'Serialize' is specifically used in computing for data storage. 'Sequence' is used for broader logic and biological molecules.

Serialize the object into a JSON string; sequence the DNA strand.

Sentence Patterns

A1

Sequence the [noun].

Sequence the numbers.

A2

I need to sequence [noun].

I need to sequence the photos.

B1

We should sequence [noun] by [criteria].

We should sequence the tasks by date.

B2

The [noun] was sequenced to [verb].

The genome was sequenced to identify mutations.

C1

By sequencing [noun], we can [verb].

By sequencing the data, we can find the error.

C2

The strategic sequencing of [noun] is vital for [noun].

The strategic sequencing of reforms is vital for stability.

B2

It is difficult to sequence [abstract noun].

It is difficult to sequence the logic of the dream.

C1

The software is designed to sequence [plural noun].

The software is designed to sequence incoming requests.

Word Family

Nouns

Verbs

Adjectives

Related

How to Use It

frequency

Common in professional and scientific English; rare in casual daily speech.

Common Mistakes
  • Using 'sequence' as an intransitive verb. The machine sequences the samples.

    You must specify what is being sequenced.

  • Confusing 'sequence' with 'succeed'. He succeeded the CEO.

    Sequence is for order; succeed is for following in a role.

  • Using 'sequence' for very simple, non-logical tasks. I organized my shoes.

    Using 'sequence' for shoes sounds overly technical and strange.

  • Spelling it 'sequense'. Sequence

    The word always ends in 'ce', never 'se'.

  • Confusing the noun and the verb in a sentence. We need to sequence (verb) the sequence (noun).

    While they look the same, they play different roles in the sentence.

Tips

Precision

Use 'sequence' when the specific order is vital to the outcome. If the order doesn't matter much, use 'arrange'.

Transitivity

Always remember to include an object. You sequence *something*. Don't leave the verb hanging.

Formal Tone

In academic writing, 'sequence' is preferred over 'put in order' or 'line up'.

Scientific Context

If you are writing about biology, 'sequence' is the only correct word for determining the order of DNA bases.

Queue

Connect 'Sequence' with 'Queue'. Both involve things following one another in a line.

Clarity

When sequencing tasks for others, use clear markers like 'First, we will sequence the...' to ensure everyone follows the logic.

Context Clues

If you hear 'sequence' in a tech talk, think 'logic flow'. In a bio talk, think 'genetic code'.

Adverb Pairing

Pair with 'carefully', 'logically', or 'efficiently' to show how the ordering is being done.

The Chain

Think of sequencing as building a chain. Each link must be in the right place for the chain to work.

Not 'Succeed'

Never use 'sequence' to mean taking over a job from someone else. That is 'succeed'.

Memorize It

Mnemonic

Think of a 'SEE-QUENCE' as what you 'SEE' in a 'QUENCE' (queue/line). If things are in a line, they are in a sequence.

Visual Association

Imagine a film strip where each frame is numbered 1, 2, 3... This is a sequenced film.

Word Web

Order DNA Computer Code Logic Timeline Process Chain Follow

Challenge

Write three sentences about your morning routine using the verb 'sequence'. Then, try to use it in a scientific sentence.

Word Origin

The word comes from the Latin 'sequentia', which means 'a following' or 'something that follows'. It is derived from the verb 'sequi', meaning 'to follow'. It entered Middle English via Old French in the 14th century.

Original meaning: Originally, it referred to a liturgical chant that followed the Alleluia in the Mass. Over time, it expanded to mean any series of things that follow one another.

Indo-European (Latin branch).

Cultural Context

No major sensitivities, though in medical contexts, the results of sequencing can be sensitive personal data.

In English-speaking professional environments, being able to 'sequence' tasks is seen as a sign of high organizational skill.

The Human Genome Project (2003 completion of sequencing). Electronic music sequencers like the Roland TB-303. The concept of 'Sequence' in the film 'Arrival' (about language and time).

Practice in Real Life

Real-World Contexts

Biology Lab

  • sequence the DNA
  • genome sequencing
  • protein sequence
  • sequence analysis

Software Engineering

  • sequence the commands
  • operation sequence
  • async sequencing
  • data serialization

Project Management

  • sequence the milestones
  • task sequencing
  • logical progression
  • order of operations

Film Editing

  • sequence the scenes
  • montage sequence
  • narrative flow
  • shot order

Music Production

  • sequence the track
  • MIDI sequencing
  • step sequencer
  • rhythmic sequence

Conversation Starters

"How do you usually sequence your tasks when you have a very busy day?"

"Do you think it's better to sequence a story chronologically or use flashbacks?"

"What are the ethical implications if we sequence the genome of every newborn baby?"

"Have you ever tried to sequence a large amount of data for a project?"

"In your opinion, what is the most important event to sequence in world history?"

Journal Prompts

Describe your ideal morning routine and sequence the steps from the moment you wake up to the moment you start work.

Reflect on a time when you sequenced your priorities incorrectly. What were the consequences, and what did you learn?

Write a short science fiction story about a world where people can sequence their own memories like a video playlist.

How would you sequence the chapters of your autobiography to make it most interesting to a reader?

Discuss the importance of sequencing in your favorite hobby, whether it's cooking, gaming, or sports.

Frequently Asked Questions

10 questions

Yes, you can, especially in a professional or productive context. Saying 'I need to sequence my meetings' sounds very organized. However, in casual conversation, 'plan' or 'arrange' might sound more natural.

Not necessarily. While many sequences are chronological (time-based), you can also sequence things logically (by step), numerically, or by size. In biology, sequencing DNA is about physical position, not time.

'Sequence' is the initial act of ordering. 'Resequence' means to change the existing order into a new one. For example, if a project plan changes, you might need to resequence the tasks.

Because DNA is made of a long chain of chemicals. The specific 'order' (sequence) of these chemicals is what contains the genetic code. By 'sequencing' it, they are reading that order.

Yes. As a noun, it refers to the order itself ('The sequence was 1-2-3'). As a verb, it refers to the action of creating that order ('We need to sequence the numbers').

You can say, 'The producer used a computer to sequence the drum beats.' This means they programmed the beats to play in a specific rhythmic order.

Yes, 'sequentially' is the adverb form. If you sequence things, they are then arranged sequentially (one after another).

It is a modern, high-speed method of sequencing DNA. It allows scientists to sequence millions of small fragments of DNA at the same time.

Usually, you sequence people's *actions* or *appearances*. For example, 'The director sequenced the actors' entrances.' You wouldn't sequence the people themselves unless you were ordering them in a line.

Yes, it is a very common academic word. You might see it in reading passages about science or history, or you might use it in a writing task to describe a process.

Test Yourself 200 questions

writing

Write a sentence using 'sequence' to describe a scientific process.

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writing

Write a sentence using 'sequence' in a business context.

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writing

Explain the difference between 'ordering' and 'sequencing' in your own words.

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writing

Write a short paragraph about how you sequence your daily tasks.

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writing

Describe a time when you had to sequence events for a project or story.

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writing

Use the word 'sequencing' as a noun in a sentence.

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writing

Write a sentence about sequencing something chronologically.

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writing

Write a sentence about sequencing instructions.

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writing

Use 'sequence' in the passive voice.

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writing

Write a sentence about sequencing music or sound.

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writing

Write a sentence about sequencing numbers for a child.

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writing

Write a sentence using 'resequence'.

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writing

Write a sentence about sequencing arguments in an essay.

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writing

Write a sentence about sequencing photos.

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writing

Write a sentence about sequencing code.

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writing

Write a sentence about sequencing a film.

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writing

Write a sentence about sequencing ingredients in a recipe.

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writing

Write a sentence about sequencing historical dates.

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writing

Write a sentence about sequencing cards.

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writing

Write a sentence about sequencing a curriculum.

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speaking

Explain how you would sequence the steps to make a cup of coffee.

Read this aloud:

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speaking

Discuss why it is important to sequence DNA in modern medicine.

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speaking

How do you sequence your work tasks for the day?

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speaking

Pronounce the word 'sequence' correctly.

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speaking

Use 'sequence' in a sentence about your favorite hobby.

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speaking

Describe the importance of sequencing in a recipe.

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speaking

Talk about a movie that was sequenced non-linearly.

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speaking

Explain the concept of 'next-generation sequencing'.

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speaking

How would you sequence a presentation to keep people interested?

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speaking

What happens if a computer fails to sequence operations correctly?

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speaking

Use 'sequence' as a verb in a polite request.

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speaking

Discuss the sequencing of historical events in your country.

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speaking

How do you sequence your study time?

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speaking

Describe how to sequence cards in a game.

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speaking

Why do teachers sequence lessons?

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speaking

Talk about the sequencing of an assembly line.

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speaking

Use 'resequence' in a sentence about a change of plans.

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speaking

How does a writer sequence suspense in a thriller?

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speaking

What is the value of sequencing genomic data for rare diseases?

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speaking

Can you sequence your favorite songs for a party?

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listening

Listen and write the sentence: 'The lab will sequence the samples tomorrow.'

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listening

What word was said? 'We need to [sequence] the data.'

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listening

Listen for the criteria: 'Sequence the list by alphabet.'

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listening

Is the verb in the past or present? 'They sequenced the genome.'

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listening

Identify the object in this audio: 'Sequence the numbers.'

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listening

What is the speaker's job? 'I sequence DNA for a living.'

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listening

Listen and write the missing word: 'The system _______ the files.'

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listening

Is this formal or informal? 'The sequencing process is complete.'

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listening

Listen and identify the stress: 'Sequence'.

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listening

What are they sequencing? 'We are sequencing the events of the day.'

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listening

Listen for the adverb: 'Please sequence them carefully.'

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listening

True or False: The speaker said 'succeed'. (Audio: 'Sequence')

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listening

Listen and write: 'DNA sequencing is a breakthrough.'

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listening

What is the action in 'I am sequencing the songs'?

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listening

Listen and write the plural form: 'The machine sequences many strands.'

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/ 200 correct

Perfect score!

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