expire

verb

ex·​pire ik-ˈspī(-ə)r How to pronounce expire (audio)
 usually for intransitive sense 3 and transitive sense 2  ek-
expired; expiring

intransitive verb

1
: to breathe one's last breath : die
2
: to come to an end: such as
a
: to exceed its period of validity
The contract will expire next month.
b
: to pass its expiration date (see expiration date sense 2)
This milk has expired.
" … when drugs expire, you can't just leave these things lying around."Ed Haislmaier
3
: to emit the breath

transitive verb

1
obsolete : conclude
2
: to breathe out from or as if from the lungs
3
archaic : emit

Examples of expire in a Sentence

My driver's license has expired. She expired after a long illness. measuring the volume of air expired from the lungs
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Cubs maintain that while the settlement agreement contained an arbitration provision, the agreement expired in 2023. Michael McCann, Sportico.com, 10 Jan. 2025 That’s also true of center Jock Landale, but Green’s deal expires this season and thus is more likely to be part of a trade package. John Hollinger, The Athletic, 10 Jan. 2025 But bills that aimed to do so expired at the end of the year. Anna Clark, ProPublica, 10 Jan. 2025 Also as part of his plea deal, the disabled Iraqi prisoner could serve his sentence, which expires in 2032, in the custody of a U.S. ally better able to care for him. Carol Rosenberg, New York Times, 9 Jan. 2025 See all Example Sentences for expire 

Word History

Etymology

Middle English, from Middle French or Latin; Anglo-French espirer to breathe out, from Latin exspirare, from ex- + spirare to breathe

First Known Use

15th century, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of expire was in the 15th century

Dictionary Entries Near expire

Cite this Entry

“Expire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expire. Accessed 18 Jan. 2025.

Kids Definition

expire

verb
ex·​pire ik-ˈspī(ə)r How to pronounce expire (audio)
 usually for sense 3  ek-
expired; expiring
1
: to breathe one's last breath : die
2
: to come to an end : be no longer in force
this offer expires March 1
my driver's license has expired
3
a
: to let the breath out
b
: to breathe out from or as if from the lungs

Medical Definition

expire

verb
ex·​pire
ik-ˈspī(ə)r, usually for vi 2 and vt ek-
expired; expiring

intransitive verb

1
: to breathe one's last breath : die
2
: to emit the breath

transitive verb

: to breathe out from or as if from the lungs
the basal metabolism test … measures the amount of carbon dioxide expired by the lungsJ. D. Ratcliff

More from Merriam-Webster on expire

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!