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

Specifically, a cash farebox hardware change required a change in the estimation of rides that were not recorded by fare collection systems, according to Chi Hack Night. —Benson Cook, CBS News, 13 May 2026

Artemis 3 is scheduled for late 2027, according to NASA Administrator Jared Isaacman, who based the timetable on Blue Origin's and SpaceX's estimations of the earliest completion for their respective landers. —Josh Dinner, Space.com, 13 May 2026

But that estimation, The New York Times reported, has grown tremendously. —Mike Stunson, USA Today, 12 May 2026

By International Energy Agency chief Fatih Birol’s estimations, Europe has about three weeks of jet fuel remaining. —Sasha Rogelberg, Fortune, 4 May 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