actuary
Americannoun
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Insurance. a person who computes premium rates, dividends, risks, etc., according to probabilities based on statistical records.
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(formerly) a registrar or clerk.
noun
Other Word Forms
Etymology
Origin of actuary
First recorded in 1545–55; from Latin āctuārius “shorthand writer, clerk,” variant (with u of the action noun āctus act ) of āctārius ( āct(a) “deeds, documents” + -ārius -ary )
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Explanation
The person who calculates the risks for an insurance company or financial institution is an actuary. An actuary analyzes accident and life expectancy statistics to help the company set the price of insurance coverage. An actuary is a risk-management professional who works with mathematical probabilities and other accounting techniques. The current meaning of the word didn't come into use until 1772, although actuarial science had been in use long before that. (The first acknowledged U.S. actuary was Jacob Shoemaker in 1809.) Before that, the word actuary meant someone who was a registrar or clerk. It derives from the Latin word actuarius, "account-keeper," which in turn came from āctus, "public business."
Vocabulary lists containing actuary
"Principles of Business," Vocabulary from Chapter 14
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Here's Looking at Euclid
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In the Country We Love
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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.
The Old-Age and Survivors Insurance trust fund, which pays out retiree and survivor benefits, is expected to be depleted by the fourth quarter of 2032, according to Social Security’s chief actuary.
From MarketWatch • Feb. 10, 2026
Mr. Stroup is a healthcare actuary and the former chief financial officer of Verity Solutions, a healthcare software provider.
From The Wall Street Journal • Nov. 11, 2025
Sheri Scott, an actuary from Milliman, told the council that the firm estimated that losses from the Eaton fire ranged from $13.7 billion to $22.8 billion.
From Los Angeles Times • Jul. 25, 2025
She made good grades in her business classes and dreamed of becoming an actuary.
From Slate • Jun. 25, 2025
Mr. Wiggins is now a well-known public accountant and insurance actuary residing in Lincoln.
From Collection of Nebraska Pioneer Reminiscences by Daughters of the American Revolution. Nebraska
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
