Dictionary.com
Thesaurus.com
Synonyms

expectancy

American  
[ik-spek-tuhn-see] / ɪkˈspɛk tən si /
Also expectance

noun

  • expectancies
    plural
  1. the quality or state of expecting; expectation; anticipatory belief or desire.

  2. the state of being expected.

  3. an object of expectation; something expected.


expectancy British  
/ ɪkˈspɛktənsɪ /

noun

  1. something expected, esp on the basis of a norm or average

    his life expectancy was 30 years

  2. anticipation; expectation

  3. the prospect of a future interest or possession, esp in property

    an estate in expectancy

"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

Other Word Forms

Noun Inflected Forms


Etymology

Origin of expectancy

From the Medieval Latin word ex(s)pectantia, dating back to 1590–1600. See expectant, -ancy


Explanation

Expectancy is the state of thinking (or hoping) that something will happen. You can sense the expectancy in the crowd just before your favorite band takes the stage. Use this word to talk about a sense of anticipation, like your little brother's expectancy every year on his birthday that someone will throw him a surprise party. It's also used to mean "an expected amount," especially in the context of life expectancy, or the average length of a person's life: "Typically, women have a longer life expectancy than men do." Expectancy is from expect, from a Latin root meaning "look for."

Keep Reading on Vocabulary.com

Vocabulary lists containing expectancy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Casey said that is a positive reflection of improvements in life expectancy but brings challenges which need "long-term planning and coordinated action".

From BBC ● Oct. 12, 2026

Surging yields in recent weeks have distorted other markets, extending the life expectancy of two other popular flavors of debt securities: mortgage bonds and Treasury futures.

From The Wall Street Journal ● Oct. 8, 2026

When a call is overturned, Baseball Savant measures the difference in run expectancy between the situation before the pitch/challenge and the situation after the call is flipped.

From Los Angeles Times ● Oct. 7, 2026

Global life expectancy is close to the levels seen before the Covid-19 pandemic, but the outlook for years lived in good health is recovering more slowly, the WHO said Friday.

From Barron's ● Oct. 2, 2026

And once more there was silence; and the expectancy, momentarily relaxed, was stretched again, tauter, tauter, almost to the tearing point.

From "Brave New World" by Aldous Huxley

Although these populations tend to have some of the world's longest life expectancies, they also experience relatively high levels of frailty in old age.

From Science Daily ● Jul. 10, 2026

So life expectancies are rising again, that’s good news.

From MarketWatch ● Feb. 13, 2026

Meanwhile, an annuity that starts paying out at age 67 would slightly favor those with lower balances and shorter life expectancies.

From The Wall Street Journal ● Oct. 18, 2025

After the Great Depression, life expectancies increased alongside the percentage of older Americans living in poverty — by 1935, 50% of older adults were poor, and by 1940, almost two-thirds were poor.

From Salon ● Apr. 7, 2025

He used these to calculate life expectancies for each age group, and to estimate the population of London, which he concluded was 460,000—not, as had been claimed, 7 million or so.

From "The Invention of Science" by David Wootton

Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com