expire

verb ex·pire \ ik-ˈspī(-ə)r , usually for senses vi 3 and vt 2 ek- \
Updated on: 10 Dec 2017

Definition of expire

expired; expiring
intransitive verb
1 : to breathe one's last breath : die
2 : to come to an end
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

  1. My driver's license has expired.

  2. She expired after a long illness.

  3. measuring the volume of air expired from the lungs

Recent Examples of expire from the Web

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

Origin and Etymology of expire

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

expire Synonyms



EXPIRE Defined for English Language Learners

expire

verb

Definition of expire for English Language Learners

  • : to end : to no longer be valid after a period of time

  • : to die

  • medical : to breathe out (air)


EXPIRE Defined for Kids

expire

verb ex·pire \ ik-ˈspīr \

Definition of expire for Students

expired; expiring
1 : to come to an end
  • Your membership expired.
2 : 1die 1
3 : to breathe out : exhale

Medical Dictionary

expire

verb ex·pire \ ik-ˈspī(ə)r, usually for vi 2 and vt ek- \

medical Definition of expire

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 lungs
  • —J. D. Ratcliff


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