expectation
/ˌɛk.spɛkˈteɪ.ʃən/ noun
Forms expectations expection
- noun The act or state of expecting or looking forward to an event as about to happen.
- noun That which is expected or looked for.
- noun An implicit obligation or duty held by another in someone's view. “He struggled with his parents' expectations.”
- noun 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.
- noun The value of any chance (as the prospect of prize or property) which depends upon some contingent event.
- noun (statistics) The first moment; the expected value; the long-run average value of a variable over many independent repetitions of an experiment.
- noun (statistics, colloquial) The arithmetic mean.
- noun (medicine, rare) The leaving of a disease principally to the efforts of nature to effect a cure.
Synonyms
outlook prospect anticipation arithmetic mean first moment expected value
Etymology
From Middle French expectation, from Latin exspectātiō, from exspectō (“expect”). By surface analysis, expect + -ation. Displaced native Old English wēn.
Webster’s 1913
- The act or state of expecting or looking forward to an event as about to happen. "In expectation of a guest." Tennyson.
- That which is expected or looked for. Why our great expectation should be called The seed of woman. Milton.
Etymology [L. expectio. exspectio: cf. F. expectation.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “expectation”, CC BY-SA 4.0. Details