/ Dictionary / Index E estimation: Meaning and Definition of Find definitions for: es•ti•ma•tion Pronunciation: (es"tu-mā'shun), [key] — n. judgment or opinion: In my estimation the boy is guilty. esteem; respect. approximate calculation; estimate: to make an estimation of one's expenditures. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: estimation (Thesaurus) estimate estimative Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language