estimation
An estimation is a rough guess or calculation about how much something is worth or how big it is.
Explanation at your level:
An estimation is a guess. If you look at a big bag of candy, you can make an estimation of how many candies are inside. It is not the exact number, but it is a good guess. You use this word when you want to talk about numbers or opinions.
When you need to know the size, cost, or value of something but you do not have a calculator, you make an estimation. It is a very useful word for school or work. You can say, 'My estimation is that it will take two hours.' It shows that you are thinking carefully about the time.
In B1 English, we use estimation to describe the process of calculating something roughly. It is common in professional contexts like construction or finance. We also use it to express our personal view. For example, 'In my estimation, this is the best way to solve the problem.' It sounds more professional than just saying 'I think.'
At the B2 level, you should recognize that estimation can refer to both quantitative data and qualitative judgment. You might hear 'cost estimation' in a business meeting or 'high estimation' when talking about someone's reputation. It is a formal, precise way to qualify your thoughts and projections, adding a layer of intellectual rigor to your speech.
Advanced learners use estimation to navigate nuance. It is often used in academic or technical writing to discuss the limitations of data. When you say, 'Current models of estimation are insufficient,' you are critiquing a methodology. Furthermore, in literary contexts, it can reflect a character's internal appraisal of another, suggesting a deep, subjective evaluation that goes beyond mere observation.
At the mastery level, estimation is understood through its etymological roots in value and judgment. It transcends simple guessing, becoming a philosophical tool for how we assign worth to the world. Whether discussing the 'estimation of risk' in a complex geopolitical scenario or the 'low estimation' in which a historical figure was held by their peers, the word serves as a bridge between objective measurement and subjective perception. It is a word of weight and consideration.
Word in 30 Seconds
- Estimation is an approximate calculation.
- It also means a personal opinion or judgment.
- It is a countable noun used in formal and neutral contexts.
- Commonly used in phrases like 'in my estimation'.
Think of estimation as your brain's way of making an educated guess. It is not about being 100% perfect, but about getting as close as possible when you do not have all the exact facts. Whether you are looking at a pile of apples and guessing how many there are, or thinking about how much a project will cost, you are using estimation.
Beyond just math, we also use this word to talk about personal opinions. If you say, 'In my estimation, he is a kind person,' you are sharing how you judge his character. It is a very versatile word that bridges the gap between cold, hard numbers and warm, human feelings.
The word estimation comes from the Latin word aestimatio, which means 'valuation' or 'appraisal.' It is rooted in the verb aestimare, meaning 'to value or determine.' Historically, it was used in legal and financial contexts to decide the value of goods or damages.
Over centuries, the word migrated into Middle French and eventually into English. It is fascinating because it kept its dual nature: it still refers to both the financial 'price' of something and the moral 'worth' or 'reputation' of a person. It is a classic example of how a word can grow from a simple accounting term into a way to describe how we view the world.
You will hear estimation used in both professional and casual settings. In business, you might hear 'cost estimation' or 'project estimation,' which are very standard. These are neutral and professional ways to discuss planning.
When used for opinions, it often carries a slightly formal or sophisticated tone. Saying 'In my estimation' sounds a bit more thoughtful than just saying 'I think.' It suggests that you have taken a moment to weigh the evidence before coming to your conclusion. It is a great word to use when you want to sound measured and objective.
While 'estimation' itself isn't the core of many fixed idioms, it is often part of phrases like:
- In my estimation: A way to introduce a personal, considered opinion.
- Rough estimation: A quick guess that is not meant to be precise.
- Hold in high estimation: To respect or value someone highly.
- Beyond estimation: Something so valuable or large it cannot be measured.
- Low estimation: To have a poor opinion of someone's character.
Estimation is a countable noun, so you can have 'an estimation' or 'estimations.' It is almost always used with the article 'an' or 'the.' The stress falls on the third syllable: es-ti-MAY-shun.
In British and American English, the pronunciation is quite similar, though the 't' sounds can vary slightly in speed. It rhymes with words like 'creation,' 'sensation,' 'relation,' 'duration,' and 'station.' Remember that it is a noun, so you cannot 'estimation' something; you must 'make an estimation' or 'estimate' it.
Fun Fact
The word originally referred to the legal act of setting a price on damages.
Pronunciation Guide
Clear 'es' sound, 'ti' is short, 'may' is stressed, 'shun' at the end.
Similar to UK but with a slightly flatter 'a' sound in the middle.
Common Errors
- Misplacing the stress on the first syllable
- Pronouncing it like 'estimation' with a hard 't' at the end
- Dropping the 'ti' sound
Rhymes With
Difficulty Rating
Easy to read
Easy to use
Easy to say
Easy to hear
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
Noun usage
An estimation is a noun.
Article usage
Use 'an' before estimation.
Subject-verb agreement
The estimation is correct.
Examples by Level
That is a good estimation.
That is a good guess.
Use 'a' before estimation.
My estimation is ten.
I guess ten.
Simple subject-verb.
Make an estimation.
Try to guess.
Imperative verb.
It is an estimation.
It is a guess.
Article usage.
What is your estimation?
What do you think?
Question form.
The estimation is easy.
The guess is simple.
Subject-verb agreement.
Give me an estimation.
Tell me your guess.
Direct object.
I have an estimation.
I have a guess.
Verb 'have'.
My estimation of the cost was wrong.
Can you give me a rough estimation?
The estimation took a long time.
His estimation of the situation was correct.
We need a better estimation.
The project estimation is finished.
I trust your estimation.
That is an accurate estimation.
In my estimation, this plan will succeed.
The cost estimation was based on last year's data.
She is held in high estimation by her colleagues.
The estimation of the damage is still ongoing.
Please provide a written estimation for the repairs.
My estimation of his character has changed.
The scientists made an estimation of the population.
Do not rely solely on your first estimation.
The estimation of the project's success is optimistic.
He had a very low estimation of his own abilities.
The insurance company provided an estimation of the losses.
In their estimation, the risk was too high.
The software provides an automatic estimation of time.
She holds him in such high estimation that she never questions him.
The estimation of the crowd size varied widely.
We must revise our estimation based on new information.
The estimation of the true value of the asset is complex.
His estimation of the political climate proved to be remarkably astute.
The report offers a critical estimation of the current economic trends.
The estimation of the impact of the policy requires further study.
She was held in the highest estimation by the academic community.
The project requires a more rigorous estimation of potential risks.
Their estimation of the situation was clouded by bias.
The estimation of the distance was purely speculative.
The estimation of the soul's worth was a central theme in his work.
Her estimation of the historical significance of the event was profound.
The estimation of the variable is subject to extreme statistical error.
He held the institution in low estimation due to its past failures.
The estimation of the celestial bodies was a feat of ancient mathematics.
Such an estimation of human nature is inherently cynical.
The estimation of the total volume is a matter of ongoing debate.
They provided an estimation of the potential for long-term growth.
Synonyms
Common Collocations
Idioms & Expressions
"In my estimation"
In my opinion
In my estimation, this is the best choice.
neutral"Hold in high estimation"
To respect someone
She is held in high estimation by her peers.
formal"Rough estimation"
A quick, imprecise guess
I need a rough estimation of the time.
neutral"Beyond estimation"
Too great to measure
The value of his kindness is beyond estimation.
literary"Low estimation"
Poor opinion
He has a low estimation of the company's future.
neutral"By my estimation"
According to my calculations
By my estimation, we will arrive at five.
neutralEasily Confused
Same root
Estimate is verb/noun, estimation is noun only.
I estimate (verb) the cost; the estimation (noun) is high.
Similar meaning
Assessment is for quality, estimation is for quantity.
Assessment of skill vs estimation of cost.
Synonym
Guess is casual, estimation is formal.
A wild guess vs a professional estimation.
Both involve numbers
Calculation is exact, estimation is approximate.
Calculation of the total vs estimation of the total.
Sentence Patterns
In my estimation, [clause]
In my estimation, we are ready.
The estimation of [noun] is [adjective]
The estimation of the cost is high.
He holds [person] in [adjective] estimation
He holds her in high estimation.
Provide an estimation for [noun]
Provide an estimation for the job.
Based on my estimation, [clause]
Based on my estimation, it will rain.
Word Family
Nouns
Verbs
Adjectives
Related
How to Use It
7
Formality Scale
Common Mistakes
Estimation is a noun; estimate is the verb.
Estimation is usually for numbers or value.
Estimate can be noun or verb, estimation is noun only.
It is a countable noun.
Estimation is the opinion itself.
Tips
Sound Professional
Use 'In my estimation' instead of 'I think'.
Noun vs Verb
Remember: Estimation (noun), Estimate (verb/noun).
Real Life Practice
Guess the number of items in a bag and call it your 'estimation'.
Latin Roots
It comes from 'aestimare', meaning to value.
Avoid Verbing
Don't say 'I estimation the cost'.
Stress the 3rd
es-ti-MAY-shun.
Business Context
Used for project planning.
Visual Trick
Picture a calculator.
Opinion vs Number
Use it for both.
Collocations
Learn 'rough estimation' as a block.
Memorize It
Mnemonic
ESTI-MATE-ION: I Estimate the MATE's ION (a small particle).
Visual Association
A person looking at a jar of jellybeans and guessing.
Word Web
Challenge
Make five estimations today: the time, distance, cost, weight, and number of items.
Word Origin
Latin
Original meaning: Valuation or appraisal
Cultural Context
None, it is a neutral term.
Common in business and academic settings to show professional caution.
Practice in Real Life
Real-World Contexts
At work
- Provide an estimation
- Cost estimation
- Project estimation
In school
- Make an estimation
- Math estimation
- Scientific estimation
In daily life
- A rough estimation
- My estimation of the time
- An accurate estimation
In debates
- In my estimation
- Based on my estimation
- Low estimation
Conversation Starters
"In your estimation, what is the most important skill for a student?"
"Do you prefer a quick estimation or an exact calculation?"
"In your estimation, how has technology changed our lives?"
"Do you hold anyone in high estimation?"
"Why is estimation important in business?"
Journal Prompts
Write about a time you had to make a difficult estimation.
Describe someone you hold in high estimation and why.
How does your estimation of your own abilities change over time?
Why do we value estimation in our daily lives?
Frequently Asked Questions
8 questionsEstimate can be a verb, estimation is always a noun.
Yes, it means your opinion or judgment of someone.
It is neutral but sounds professional.
es-ti-MAY-shun.
Yes, when referring to a specific one.
Estimations.
Yes, very often.
Estimable.
Test Yourself
That is a good ___.
Estimation fits the context of a guess.
What does estimation mean?
Estimation is an educated guess.
Is estimation a verb?
Estimation is a noun.
Word
Meaning
Common collocations.
In my estimation is correct.
Score: /5
Summary
Estimation is your brain's way of making a smart guess or a measured judgment about value.
- Estimation is an approximate calculation.
- It also means a personal opinion or judgment.
- It is a countable noun used in formal and neutral contexts.
- Commonly used in phrases like 'in my estimation'.
Sound Professional
Use 'In my estimation' instead of 'I think'.
Noun vs Verb
Remember: Estimation (noun), Estimate (verb/noun).
Real Life Practice
Guess the number of items in a bag and call it your 'estimation'.
Latin Roots
It comes from 'aestimare', meaning to value.
Example
By my estimation, it will take about two hours to finish the gardening.
Related Content
This Word in Other Languages
More Work words
abformize
C1To structure or give a specific, standardized form to an object, idea, or process, often based on a pre-existing model or mold. It is frequently used in technical or theoretical contexts to describe the transition from an amorphous state to a defined configuration.
abmissery
C1To formally discharge or release an individual from a specific duty, mission, or administrative post, typically due to a failure to meet requirements or an organizational change. It implies a structured removal from a position of responsibility before the natural conclusion of a term.
abregship
C1To systematically condense, streamline, or narrow the scope of duties and authorities inherent in a formal leadership position or institutional office. This verb is typically used in the context of organizational restructuring to describe the reduction of a role's breadth to increase efficiency.
absigntude
C1To formally and publicly relinquish a position of authority or a professional responsibility, specifically as an act of moral or ethical protest. This verb implies that the departure is accompanied by a documented statement of principles or a refusal to comply with compromised standards.
accomplishment
B2An accomplishment is something that has been achieved successfully, especially through hard work, skill, or perseverance. It refers both to the act of finishing a task and the successful result itself.
achievement
C1A thing done successfully, typically by effort, courage, or skill. In an academic or professional context, it refers to the act of reaching a specific level of performance or completing a significant milestone.
adantiary
C1To strategically adjust or modify an existing plan, process, or structure in anticipation of specific future obstacles or changes. This verb describes the proactive act of refining a strategy before a problem actually occurs.
adept
C1Highly skilled or proficient at a task that requires specific knowledge or practice. It describes a person who can perform complex actions with ease and precision.
adflexship
C1To strategically and dynamically adapt one's professional approach or methodology by flexibly integrating new skills or environmental shifts. It describes the active process of mastering situational changes to maintain a competitive or functional advantage.
adhument
C1To provide support, assistance, or reinforcement to a person, organization, or project. It specifically refers to the act of strengthening an existing foundation or effort through additional resources or effort.
