From The Collaborative International Dictionary of English v.0.48 [gcide]:
Expire \Ex*pire"\, v. t. [imp. & p. p. Expired; p. pr & vb. n.
Expiring.] [L. expirare, exspirare, expiratum, exspiratum;
ex out + spirare to breathe: cf. F. expirer. See Spirit.]
1. To breathe out; to emit from the lungs; to throw out from
the mouth or nostrils in the process of respiration; --
opposed to inspire.
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Anatomy exhibits the lungs in a continual motion of
inspiring and expiring air. --Harvey.
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This chafed the boar; his nostrils flames expire.
--Dryden.
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2. To give forth insensibly or gently, as a fluid or vapor;
to emit in minute particles; to exhale; as, the earth
expires a damp vapor; plants expire odors.
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The expiring of cold out of the inward parts of the
earth in winter. --Bacon.
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3. To emit; to give out. [Obs.] --Dryden.
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4. To bring to a close; to terminate. [Obs.]
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Expire the term
Of a despised life. --Shak.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Expire \Ex*pire"\, v. i.
1. To emit the breath.
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2. To emit the last breath; to breathe out the life; to die;
as, to expire calmly; to expire in agony.
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3. To come to an end; to cease; to terminate; to perish; to
become extinct; as, the flame expired; his lease expires
to-day; the month expired on Saturday.
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4. To burst forth; to fly out with a blast. [Obs.] "The
ponderous ball expires." --Dryden.
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From WordNet (r) 3.0 (2006) [wn]:
expire
v 1: lose validity; "My passports expired last month" [syn: {run
out}, expire]
2: pass from physical life and lose all bodily attributes and
functions necessary to sustain life; "She died from cancer";
"The children perished in the fire"; "The patient went
peacefully"; "The old guy kicked the bucket at the age of
102" [syn: die, decease, perish, go, exit, {pass
away}, expire, pass, kick the bucket, {cash in one's
chips}, buy the farm, conk, give-up the ghost, {drop
dead}, pop off, choke, croak, snuff it] [ant: {be
born}]
3: expel air; "Exhale when you lift the weight" [syn: exhale,
expire, breathe out] [ant: breathe in, inhale,
inspire]