ex·​pi·​ra·​tion | \ˌek-spə-ˈrā-shən \

Definition of expiration 

1a : the last emission of breath : death

b(1) : the act or process of releasing air from the lungs through the nose or mouth : exhalation

(2) : the escape of carbon dioxide from the body protoplasm (as through the blood and lungs or by diffusion)

2 : the fact of coming to an end or the point at which something ends : termination

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Examples of expiration in a Sentence

one month after the expiration of the contract directed that upon her expiration her splendid Italian-style villa be given to the public as a museum

Recent Examples on the Web

The expiration in mid-September of a tax benefit for companies that invested in the pension funds may be contributing to the in U.S. government 10- and 30-year debt yields, said Andrew Brenner, head of global fixed income at NatAlliance Securities. Daniel Kruger, WSJ, "U.S. Government 10-Year Note Yields Climb to Seven-Year High," 5 Oct. 2018 In a second amendment, City Councilman Jared Brossett shortened the typical one-year expiration on the interim zoning district to nine months. Kevin Litten, NOLA.com, "New Orleans City Council issues temporary ban on most short-term rental permits," 24 May 2018 With Trump setting a March 5 expiration for the program protecting Dreamers, Democrats were refusing to go along with any more delay in striking a deal on immigration. Kevin Diaz, Houston Chronicle, "For Texans, Friday night's shutdown drama focuses on border, Dreamers, soldiers and children's health," 19 Jan. 2018 The joint venture will start selling in 2019, ahead of the expiration of all current USOC partnerships in 2020. Rachel Bachman, WSJ, "USOC Hires Golf Executive as CEO," 12 July 2018 Tony Parker, 35, will see the expiration of his contract late Saturday night and enter an uncertain free agency period. Jeff Mcdonald, San Antonio Express-News, "As free agency opens, Spurs’ ‘Kawisis’ looms large — but there are other issues too," 29 June 2018 Thus, the 1988 License Agreement and Addenda Nos. 1-3 expired and terminated no later than April 1, 2001, either by virtue of expiration of the term set forth therein and/or Accolade’s failure to pay royalties. Lee Hutchinson, Ars Technica, "Star Control countersuit aims to invalidate Stardock’s trademarks [Updated]," 22 Feb. 2018 Flanagan's contract with Liverpool is coming to an end this summer, and Liverpool have already confirmed that Flanagan will be leaving the club upon its expiration. SI.com, "Steven Gerrard Set to Sign Former Liverpool Defender With Rangers Medical Imminent," 20 June 2018 The February expiration was the second time Miles' permit expired, said Mancilla. Jaimy Jones, Houston Chronicle, "Gilley's revival not coming to La Porte after retail complex canceled," 12 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expiration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of expiration

1526, in the meaning defined at sense 1a

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Last Updated

16 Nov 2018

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The first known use of expiration was in 1526

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English Language Learners Definition of expiration

: the fact of coming to an end or no longer being valid after a period of time : the fact of expiring

medical : the act of breathing out


ex·​pi·​ra·​tion | \ˌek-spə-ˈrā-shən \

Kids Definition of expiration

1 : the end of something that lasts for a certain period of time expiration of a coupon

2 : the act of breathing out


ex·​pi·​ra·​tion | \ˌek-spə-ˈrā-shən \

Medical Definition of expiration 

1a(1) : the act or process of releasing air from the lungs through the nose or mouth : exhalation

(2) : the escape of carbon dioxide from the body protoplasm (as through the blood and lungs or by diffusion)

b archaic : the last emission of breath : death

2 : something produced by breathing out

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a private place of worship

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