Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
THESAURUS
ROGET THESAURUS

WORDNET DICTIONARY

Noun expiration has 3 senses

• expiration(n = noun.time) expiry, termination - a coming to an end of a contract period; "the expiry of his driver's license"
is a kind of end, ending
Derived form verb expire₁

• expiration(n = noun.event) departure, exit, going, loss, passing, release - euphemistic expressions for death; "thousands mourned his passing"
is a kind of death, decease, expiry
Derived form verb expire₂

• expiration(n = noun.act) breathing out, exhalation - the act of expelling air from the lungs; Array
is a part of breathing, external respiration, respiration, ventilation
has particulars: huffing, puffing, snorting, blow, puff, wind
is a kind of breath
Derived form verb expire₃

CIDE DICTIONARY

OXFORD DICTIONARY

THESAURUS

expiration

Aqua-Lung, Z, annihilation, apodosis, artificial respiration, aspiration, asthmatic wheeze, bane, biological death, breath, breath of air, breathing, broken wind, catastrophe, ceasing, cessation, cessation of life, clinical death, close, closing, coda, concluding, conclusion, consummation, cough, crack of doom, crossing the bar, culmination, curtain, curtains, death, death knell, debt of nature, decease, demise, denouement, departure, destination, destiny, discontinuance, discontinuation, dissolution, doom, dying, ebb of life, effect, end, end of life, end point, ending, envoi, epilogue, eschatology, eternal rest, exhalation, exit, expiry, exsufflation, extinction, extinguishment, fate, final solution, final summons, final twitch, final words, finale, finality, finger of death, finis, finish, gasp, goal, going, going off, grave, gulp, hack, hand of death, hiccup, inhalation, inhalator, inspiration, insufflation, iron lung, izzard, jaws of death, knell, last, last breath, last debt, last gasp, last muster, last rest, last roundup, last sleep, last things, last trumpet, last words, latter end, leaving life, loss of life, making an end, mouth-to-mouth resuscitation, omega, oxygen mask, oxygen tent, pant, parting, passing, passing away, passing over, payoff, period, perishing, peroration, puff, quietus, release, resolution, respiration, rest, resting place, reward, scuba, sentence of death, shades of death, shadow of death, sigh, sleep, sneeze, sniff, sniffle, snore, snoring, snuff, snuffle, somatic death, sternutation, stertor, stoppage, stopping place, summons of death, suspiration, swan song, term, terminal, termination, terminus, wheeze, wind, windup

ROGET THESAURUS

expiration

End

N end, close, termination, desinence, conclusion, finis, finale, period, term, terminus, endpoint, last, omega, extreme, extremity, gable end, butt end, fag-end, tip, nib, point, tail, verge, tag, peroration, bonne bouche, bottom dollar, tail end, rear guard, consummation, denouement, finish, fate, doom, doomsday, crack of doom, day of Judgment, dies irae, fall of the curtain, goal, destination, limit, determination, expiration, expiry, extinction, extermination, death, end of all things, finality, eschatology, break up, commencement de la fin, last stage, turning point, coup de grace, deathblow, knock-out-blow, sockdolager, ending, final, terminal, definitive, crowning, last, ultimate, hindermost, rear, caudal, vergent, conterminate, conterminous, conterminable, ended, at an end, settled, decided, over, played out, set at rest, conclusive, penultimate, last but one, last but two, unbegun, uncommenced, fresh, finally, in fine, at the last, once for all, as high as Heaven and as deep as hell, deficit omne quod nascitur, en toute chose il faut considerer la fin, finem respice, ultimus Romanorum.

For further exploring for "expiration" in Webster Dictionary Online