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estimate

[v. es-tuh-meyt; n. es-tuh-mit, -meyt] /v. ˈɛs təˌmeɪt; n. ˈɛs tə mɪt, -ˌmeɪt/
verb (used with object), estimated, estimating.
1.
to form an approximate judgment or opinion regarding the worth, amount, size, weight, etc., of; calculate approximately:
to estimate the cost of a college education.
2.
to form an opinion of; judge.
verb (used without object), estimated, estimating.
3.
to make an estimate.
noun
4.
an approximate judgment or calculation, as of the value, amount, time, size, or weight of something.
5.
a judgment or opinion, as of the qualities of a person or thing.
6.
a statement of the approximate charge for work to be done, submitted by a person or business firm ready to undertake the work.
Origin
1525-1535
1525-35; < Latin aestimātus, past participle of aestimāre to value, estimate; see -ate1
Related forms
estimatingly, adverb
estimator, noun
preestimate, verb (used with object), preestimated, preestimating.
preestimate, noun
reestimate, verb (used with object), reestimated, reestimating.
reestimate, noun
self-estimate, noun
unestimated, adjective
well-estimated, adjective
Synonyms
1. compute, count, reckon, gauge, assess, value, evaluate, appraise. 4. valuation, calculation, appraisal.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for estimator

estimate

verb (ˈɛstɪˌmeɪt)
1.
to form an approximate idea of (distance, size, cost, etc); calculate roughly; gauge
2.
(transitive; may take a clause as object) to form an opinion about; judge to estimate one's chances
3.
to submit (an approximate price) for (a job) to a prospective client
4.
(transitive) (statistics) to assign a value (a point estimate) or range of values (an interval estimate) to a parameter of a population on the basis of sampling statistics See estimator
noun (ˈɛstɪmɪt)
5.
an approximate calculation
6.
a statement indicating the likely charge for or cost of certain work
7.
a judgment; appraisal; opinion
Derived Forms
estimative, adjective
Word Origin
C16: from Latin aestimāre to assess the worth of, of obscure origin

estimator

/ˈɛstɪˌmeɪtə/
noun
1.
a person or thing that estimates
2.
(statistics) a derived random variable that generates estimates of a parameter of a given distribution, such as ̄X, the mean of a number of identically distributed random variables Xi. If ̄X is unbiased, ̄x, the observed value should be close to E(Xi) See also sampling statistic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for estimator
estimate
1560s, from L. aestimatus, verbal noun from aestimare (see esteem). As a builder's statement of projected costs, from 1796.
estimate
1590s, "appraise the worth of," from L. aestimat-, pp. stem of aestimare (see esteem). Meaning "form an approximate notion" is from 1660s. Related: Estimated; estimates; estimating.
estimator
1660s, from L. aestimator, agent noun from aestimare (see estimate).
Online Etymology Dictionary, © 2010 Douglas Harper
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