expiration
noun
ex·pi·ra·tion
ˌek-spə-ˈrā-shən 
1
a
: 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
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
Last year, the government was shut down for 43 days as Democrats in Congress protested the expiration of healthcare subsidies.
—
Kaia Hubbard, CBS News, 14 May 2026
To counter cuts from the federal government, Newsom proposed a $300 million fund to insulate Californians from the expiration of Affordable Care Act tax subsidies that are spiking insurance premiums for lower income Americans.
—Kate Wolffe, Sacbee.com, 14 May 2026
Collins first broke with Republican leadership on the issue last month, shortly before the expiration of a 60-day legal window that some legal experts argue required the Administration to seek congressional authorization for continued military action.
—Nik Popli, Time, 13 May 2026
That expiration would allow Iran to resume some nuclear activities, as in the 2015 Iran nuclear deal negotiated under President Barack Obama.
—Tal Shalev, CNN Money, 12 May 2026
See All Example Sentences for expiration
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Kaia Hubbard, CBS News, 14 May 2026
To counter cuts from the federal government, Newsom proposed a $300 million fund to insulate Californians from the expiration of Affordable Care Act tax subsidies that are spiking insurance premiums for lower income Americans.
—Kate Wolffe, Sacbee.com, 14 May 2026
Collins first broke with Republican leadership on the issue last month, shortly before the expiration of a 60-day legal window that some legal experts argue required the Administration to seek congressional authorization for continued military action.
—Nik Popli, Time, 13 May 2026
That expiration would allow Iran to resume some nuclear activities, as in the 2015 Iran nuclear deal negotiated under President Barack Obama.
—Tal Shalev, CNN Money, 12 May 2026
See All Example Sentences for expiration
Cite this Entry
“Expiration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expiration. Accessed 21 May. 2026.
Copy CitationKids Definition
expiration
noun
ex·pi·ra·tion
ˌek-spə-ˈrā-shən
1
a
: the expelling of air from the lungs in breathing
b
: air or vapor expelled from the lungs
2
: the fact of coming to an end
Medical Definition
expiration
noun
ex·pi·ra·tion
ˌek-spə-ˈrā-shən
1
a(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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