estimation

noun

es·​ti·​ma·​tion ˌe-stə-ˈmā-shən 

1

: judgment, opinion

a poor choice in my estimation

2

a

: the act of estimating something

b

: the value, amount, or size arrived at in an estimate

3

: esteem, honor

Synonyms of estimation

• assessment
• appraisal
• estimate
• evaluation
• appraisement

Examples of estimation in a Sentence

This is not, in my estimation, an efficient use of our resources.

She went down in her supporters' estimation after she voted against the plan.

Planning the project requires careful cost estimation.

Recent Examples on the Web

As Manoukian describes it, JPM’s estimation is that a deal will be reached with Iran in two to three weeks, motivated in part by the fact that the president won’t want to see oil prices rising much higher in a midterm election year. —Eleanor Pringle, Fortune, 9 Mar. 2026

Social media and lower-risk services may use lighter estimation tools designed to confirm age without permanently storing detailed identity records. —Barbara Booth, CNBC, 8 Mar. 2026

The maid, in Pistol’s chivalrous estimation, belonged to their lowly number. —Taran Dugal, New Yorker, 4 Mar. 2026

The proposal would require AI systems that simulate conversation to use privacy-preserving age estimation so child-protective settings kick in for users under 18. —Chris Lehane, Mercury News, 4 Mar. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing estimation

• point estimation
• re-estimation
• rise in someone's estimation

Rhymes for estimation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids Definition

estimation

noun

es·​ti·​ma·​tion ˌes-tə-ˈmā-shən 

1

: judgment sense 3, opinion

2

: estimate entry 2 sense 3

3

: esteem entry 1