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

Given budget estimations don't include costly marketing and promotional expenses, the film still has a long way to go before passing into the black. —Ryan Coleman, Entertainment Weekly, 16 Mar. 2026

The problem with quantum phase estimation The second algorithm analyzed, QPE, is designed for future fault-tolerant quantum computers that can correct their own errors. —Rupendra Brahambhatt, Interesting Engineering, 14 Mar. 2026

Indeed, Sontag’s own estimation of Mann soon went into decline. —Alex Ross, New Yorker, 14 Mar. 2026

That’s for a single episode of a show that, by O’Brien’s own estimation, runs on roughly the cost of a decent dinner for two. —Hanna Wickes, Miami Herald, 12 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