estimation
B2Formal to Neutral
Definition
Meaning
A rough calculation or judgment of the value, number, quantity, or extent of something.
A formal opinion or judgment, especially one formed by an expert; a valuation. Also, the respect or regard in which one is held ('to hold someone in high estimation').
Linguistics
Semantic Notes
Can refer to both a process (the act of estimating) and a product (the resulting figure or opinion). In its 'regard' sense, it is somewhat literary/archaic.
Dialectal Variation
British vs American Usage
Differences
No significant difference in core meaning. The verb 'to estimate' is slightly more frequent than the noun in both varieties.
Connotations
In both, implies a degree of uncertainty. In technical contexts (statistics, project management), it is a precise term.
Frequency
Equally common in both UK and US English in academic, business, and technical registers.
Vocabulary
Collocations
Grammar
Valency Patterns
estimation of [noun phrase]estimation that [clause]in [one's] estimationaccording to [an] estimationVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “ballpark estimation (figure)”
- “in my estimation (formal for 'in my opinion')”
- “a rough and ready estimation”
Usage
Context Usage
Business
Crucial for budgeting, project planning, and forecasting ('The project's cost estimation was exceeded by 15%').
Academic
Used in statistics (point estimation), research methodology, and scholarly critique ('The author's estimation of the data's significance is flawed').
Everyday
Used for informal calculations like time, cost, or quantity ('My estimation is we'll need three more litres of paint').
Technical
Specific meaning in fields like statistics (parameter estimation), software engineering (effort estimation), and quantity surveying.
Examples
By Part of Speech
verb
British English
- The surveyor will estimate the value of the property.
- We need to estimate how many attendees to cater for.
American English
- The contractor estimated the job would take three weeks.
- Can you estimate the damage from the storm?
adverb
British English
- The project was estimatedly behind schedule.
- (Rare; 'roughly' or 'approximately' is preferred)
American English
- The work will take estimatedly two months.
- (Rare; 'roughly' or 'approximately' is preferred)
adjective
British English
- The estimated time of arrival is 18:00.
- She gave an estimated figure for the renovation.
American English
- The estimated cost is between five and seven thousand dollars.
- An estimated crowd of ten thousand gathered.
Examples
By CEFR Level
- My estimation is that the bag weighs five kilos.
- The teacher asked for an estimation of the number of apples.
- According to the latest estimation, the population will rise by 10%.
- I need a rough estimation of the travel costs.
- The initial cost estimation proved to be wildly optimistic, causing budget overruns.
- In my estimation, the risks outweigh the potential benefits.
- The statistical model provides a point estimation for the population parameter with a defined confidence interval.
- Her estimation in the field is such that her pronouncements are rarely questioned.
Learning
Memory Aids
Mnemonic
Think: e-STI-mate-ion. You make a STImated guess, which turns into an estimATION.
Conceptual Metaphor
KNOWING IS SEEING ('I see your point, and in my estimation...'), QUANTITY IS SIZE/MAGNITUDE ('a large estimation of the crowd').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing with 'оценка' when it means 'mark/grade' in an educational context. 'Estimation' is not a mark for a test. It is closer to 'приблизительный расчет', 'прикидка', 'экспертная оценка'. The 'regard' sense maps to 'мнение', 'уважение'.
Common Mistakes
- Using 'estimation' to mean a precise, final calculation. Mispronouncing with stress on the first syllable (/ˈestɪmeɪʃən/). Confusing 'estimate' (noun/verb) and 'estimation' (primarily noun).
Practice
Quiz
In which sentence is 'estimation' used in its more archaic/literary sense?
FAQ
Frequently Asked Questions
'Estimate' is more commonly used as both a noun (give me an estimate) and a verb (I estimate the cost). 'Estimation' is primarily a noun referring to the process, the result, or a formal opinion. They are often interchangeable as nouns, but 'estimation' can sound slightly more formal.
In its core meaning, yes, it implies a degree of uncertainty. However, in technical fields like statistics, an 'estimation' can be a precise mathematical procedure resulting in a specific figure (an 'estimator'), though the true value remains unknown.
Yes, but this usage is now formal and somewhat old-fashioned (e.g., 'hold someone in high estimation'). In modern English, 'esteem' is more common for this meaning.
The primary stress is on the third syllable: 'es-ti-MA-tion'. The British pronunciation is /ˌestɪˈmeɪʃn/, the American is /ˌestəˈmeɪʃ(ə)n/. Avoid stressing the first syllable.
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