Share this entry

estimation Line breaks: es¦ti|ma¦tion
Pronunciation: /ɛstɪˈmeɪʃ(ə)n/

Definition of estimation in English:


1A rough calculation of the value, number, quantity, or extent of something: estimations of protein concentrations
More example sentences
  • Thus, the given values for wax layer thickness on leaves are rather rough estimations.
  • This model was developed to provide UV irradiance calculations and UVI estimations with high accuracy for different atmospheric, temporal and geographical conditions.
  • It also results in more conservative estimations of brand values than other methods: this can be a problem when those who are in the market to acquire a brand seek valuation methods that justify bidding a higher price to win the deal.
estimate, rough calculation, approximation, educated/informed guess, rough guess, evaluation, assessment, appraisal
informal guesstimate
2 [usually in singular] A judgement of the worth or character of someone or something: the pop star rose in my estimation
More example sentences
  • Instead, right-to-die advocates project their own gloomy estimation of the worth of human life on to these poor souls.
  • Such shrewdness is based on a full knowledge and estimation of any situation.
  • As I contemplate this revelation, the character improves in my estimation.
assessment, evaluation, judgement, gauging, rating, appraisal, esteem, opinion, view, analysis


Late Middle English (originally in the sense 'comprehension, intuition', also 'valuing, a valuation'): from Latin aestimatio(n-), from aestimare 'determine, appraise' (see estimate).

Definition of estimation in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day whippersnapper
Pronunciation: ˈ(h)wipərˌsnapər
a young, inexperienced person considered presumptuous or overconfident...