The noun estimate has 5 senses (first 4 from tagged texts)
1. (13) estimate, estimation, approximation, idea -- (an approximate calculation of quantity or degree or worth; "an estimate of what it would cost"; "a rough idea how long it would take")
2. (5) estimate, estimation -- (a judgment of the qualities of something or somebody; "many factors are involved in any estimate of human life"; "in my estimation the boy is innocent")
3. (3) appraisal, estimate, estimation -- (a document appraising the value of something (as for insurance or taxation))
4. (2) estimate -- (a statement indicating the likely cost of some job; "he got an estimate from the car repair shop")
5. estimate, estimation -- (the respect with which a person is held; "they had a high estimation of his ability")
Overview of verb estimate
The verb estimate has 2 senses (first 2 from tagged texts)
1. (34) estimate, gauge, approximate, guess, judge -- (judge tentatively or form an estimate of (quantities or time); "I estimate this chicken to weigh three pounds")
2. (9) calculate, estimate, reckon, count on, figure, forecast -- (judge to be probable)