noun
An appraisal of the value of something
Opinion
A considered guess
verb
To make a rough or tentative appraisal
To form an opinion about
estimate, in this comparison, refers broadly to the forming of a personal opinion or judgment; appraise implies the aim of giving an accurate or expert judgment, as of value or worth to appraise a new house; evaluate also connotes an attempt at an exact judgment, but rarely with reference to value in terms of money let us evaluate the evidence; rate implies assignment of comparative value, quality, etc. he is rated the best in his field See also syn. study at calculate.
See estimate in American Heritage Dictionary 4 Synonyms
See estimate in Webster's New World Roget's A-Z Thesaurus II
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