American English

How to pronounce estimation

nounB2
ehstuhMAYshn

/ˌɛs.təˈmeɪ.ʃn̩/

4 syllables · Stress the third syllable.

a number or amount that is close to the real one, based on the information available rather than an exact measurement

Practice out loud

Meanings & examples

noun

a number or amount that is close to the real one, based on the information available rather than an exact measurement

The cost estimation is about $5,000.

We need an estimation of the travel time.

Common phrases & grammar

cost estimation · time estimation · rough estimation

an estimation of + noun

the estimation of + noun

nounformalless common

an opinion about the value, quality, or importance of someone or something

In my estimation, the plan is too risky.

Her estimation of his work is very high.

Good to know

This meaning is common in the phrase in my estimation, but opinion or judgment is more common in everyday speech.

Common phrases & grammar

in someone's estimation, + sentence

someone's estimation of + noun

Useful expressions

in my estimation

in my opinion or judgment

In my estimation, the plan is too risky.

Related words & forms

In everyday English, estimate is usually more natural; estimation is more formal or technical.