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Estimate vs Expectation - What's the difference?

estimate | expectation |

As nouns the difference between estimate and expectation

is that estimate is a rough calculation or guess while expectation is the act or state of expecting or looking forward to an event as about to happen.

As a verb estimate

is to calculate roughly, often from imperfect data.

estimate

English

Alternative forms

* (archaic)

Noun

(en noun)
  • A rough calculation or guess.
  • (construction and business) A document (or verbal notification) specifying how much a job will probably cost.
  • * {{quote-book, year=1928, author=Lawrence R. Bourne
  • , title=Well Tackled! , chapter=3 citation , passage=“They know our boats will stand up to their work,” said Willison, “and that counts for a good deal. A low estimate from us doesn't mean scamped work, but just that we want to keep the yard busy over a slack time.”}}

    Synonyms

    * estimation * appraisal

    Derived terms

    * ballpark estimate

    Verb

  • To calculate roughly, often from imperfect data.
  • * {{quote-book, year=1965, author=Ian Hacking, title=Logic of Statistical Inference, passage=I estimate that I need 400 board feet of lumber to complete a job, and then order 350 because I do not want a surplus, or perhaps order 450 because I do not want to make any subsequent orders.
  • citation
  • * '>citation
  • To judge and form an opinion of the value of, from imperfect data.
  • * John Locke
  • It is by the weight of silver, and not the name of the piece, that men estimate commodities and exchange them.
  • * J. C. Shairp
  • It is always very difficult to estimate the age in which you are living.

    Synonyms

    * appraise * guess

    Derived terms

    * estimable * underestimate * overestimate

    expectation

    English

    Noun

    (en noun)
  • The act or state of expecting or looking forward to an event as about to happen.
  • *
  • *:“A tight little craft,” was Austin’s invariable comment on the matron;. ¶ Near her wandered her husband, orientally bland, invariably affable, and from time to time squinting sideways, as usual, in the ever-renewed expectation that he might catch a glimpse of his stiff, retroussé moustache.
  • That which is expected or looked for.
  • *{{quote-book, year=1922, author=(Michael Arlen), title= “Piracy”: A Romantic Chronicle of These Days, chapter=Ep./1/1
  • , passage=And so it had always pleased M. Stutz to expect great things from the dark young man whom he had first seen in his early twenties?; and his expectations had waxed rather than waned on hearing the faint bruit of the love of Ivor and Virginia—for Virginia, M. Stutz thought, would bring fineness to a point in a man like Ivor Marlay,
  • The prospect of the future; grounds upon which something excellent is expected to occur; prospect of anything good to come, especially of property or rank.
  • *1816 , (Jane Austen), , Vol.1 Ch.7:
  • *:Emma was not sorry to be pressed. She read, and was surprized. The style of the letter was much above her expectation . There were not merely no grammatical errors, but as a composition it would not have disgraced a gentleman; the language, though plain, was strong and unaffected, and the sentiments it conveyed very much to the credit of the writer. It was short, but expressed good sense, warm attachment, liberality, propriety, even delicacy of feeling. She paused over it, while Harriet stood anxiously watching for her opinion, with a "Well, well," and was at last forced to add, "Is it a good letter? or is it too short?"
  • The value of any chance (as the prospect of prize or property) which depends upon some contingent event.
  • (lb) The first moment; the long-run average value of a variable over many independent repetitions of an experiment.
  • (lb) The arithmetic mean.
  • The leaving of a disease principally to the efforts of nature to effect a cure.
  • Usage notes

    * (value of any chance) Expectations are computed for or against the occurrence of the event.

    Synonyms

    * (sense) arithmetic mean; average

    See also

    * (statistics)