expectancy

noun

ex·​pec·​tan·​cy ik-ˈspek-tən(t)-sē How to pronounce expectancy (audio)
plural expectancies
1
a
: the act, action, or state of expecting
the strange expectancy that getting on any train gives usJohn Updike
b
: the state of being expected
occurs with an expectancy slightly greater than usual
2
a
: something expected
their belief led to an expectancy
b
: the expected amount (as of the number of years of life) based on statistical probability
life expectancy

Examples of expectancy in a Sentence

that feeling of optimistic expectancy that fills theatergoers as they wait for the curtain to rise
Recent Examples on the Web Even in pastoral scenes like his study of two magnolia warblers, the little birds vibrate with expectancy, each obviously poised for flight. Danny Heitman, The Christian Science Monitor, 8 May 2024 Such expectancy effects influence clinical trials of all kinds. Brendan Borrell, New York Times, 21 Mar. 2024 See all Example Sentences for expectancy 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'expectancy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1600, in the meaning defined at sense 1a

Time Traveler
The first known use of expectancy was in 1600

Dictionary Entries Near expectancy

Cite this Entry

“Expectancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expectancy. Accessed 29 May. 2024.

Kids Definition

expectancy

noun
ex·​pect·​an·​cy
ik-ˈspek-tən-sē
plural expectancies
1
2
: the expected amount (as of years of life) based on statistical probability
life expectancy

Medical Definition

expectancy

noun
ex·​pec·​tan·​cy -ˈspek-tən-sē How to pronounce expectancy (audio)
plural expectancies
: the expected amount (as of the number of years of life) based on statistical probability see life expectancy

Legal Definition

expectancy

noun
ex·​pec·​tan·​cy
plural expectancies
: something expected: as
a
: an interest held by a person who may receive something (as a bequest) in the future but has no enforceable right to it
b
: the benefit that will be received from a contract if performed

More from Merriam-Webster on expectancy

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