duration

1 the period during which something exists, lasts, or is in progress for the whole duration of the speech the bored audience fidgeted Synonyms of duration continuance, date, life, life span, lifetime, run, standing, time Words Related to duration spell, stretch; span, tenure, term; hitch, tour, turn; half-life; age, longevity

2 uninterrupted or lasting existence scientists warning that the very duration of our civilization depends upon finding a solution to this major environmental problem Synonyms of duration abidance, ceaselessness, continuance, continuity, continuousness, durability, continuation, endurance, persistence, subsistenceWords Related to duration drawing out, elongation, extension, lengthening, prolongation, prolonging, stretching; enduringness, permanence; survivalNear Antonyms of duration abridgment (or abridgement), curtailment, cutback, shorteningAntonyms of duration cessation, close, discontinuance, discontinuity, end, ending, expiration, finish, stoppage, surcease, termination