duration
Americannoun
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the length of time something continues or exists (often used withthe ).
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continuance in time.
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(in the philosophy of Bergson) a temporal continuum, intuitively known, within which the élan vital operates.
noun
Other Word Forms
- durational adjective
Etymology
Origin of duration
First recorded in 1350–1400; Middle English, from Medieval Latin dūrātiōn-, stem of dūrātiō, from Latin dūrāt(us) “lasted” (past participle of dūrāre “to last”; see dure 2) + -iō -ion
Explanation
Duration is how long something lasts, from beginning to end. A duration might be long, such as the duration of a lecture series, or short, as the duration of a party. The noun duration has come to mean the length of time one thing takes to be completed. The duration of something might be known or not — in past times, the unknown length of time the current war would last was called "the duration. "Musical notes, such as whole notes, half notes, and quarter notes, have different set durations, or lengths of time for which they are held. These varying durations, when put together, create the rhythm of the music.
Vocabulary lists containing duration
Abraham Lincoln's Second Inaugural Address (1865)
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The Miraculous Journey of Edward Tulane
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Word Generation Weekly - Series 3
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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.
Because of "uncertainty around the severity and duration" of the war, the Bank considered a range of scenarios to determine how it will react in the coming months.
From BBC • Apr. 30, 2026
Granted, Sankar noted that growing demand for central processing units should “help the duration narrative for” dynamic random-access memory.
From MarketWatch • Apr. 28, 2026
The companies declined to disclose the financial terms and exact duration of the deal.
From The Wall Street Journal • Apr. 24, 2026
The results showed that the electrical spikes matched key biological properties, including their timing and duration.
From Science Daily • Apr. 18, 2026
She was over fiftieth level, so it would remain in existence for the spell’s maximum duration: fifteen minutes.
From "Ready Player One: A Novel" by Ernest Cline
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.
