Thesaurus

Synonyms for Past include:

age-old, ago, agone, ancient, antebellum, antediluvian, antiquated, antique, archaic, auld, back, bygone, bypast, chivalric, cold, dead, departed, disused, early, effluent, erstwhile, foregone, former, gone, gothic, hand-down, hand-me-down, historic, historical, hoary, horse-and-buggy, immemorial, knightly, last, late, long-ago, longtime, mediaeval, medieval, noncurrent, nonmodern, obsolescent, obsolete, old, old-world, olden, onetime, other, out, out-of-date, outbound, outdated, outflowing, outgoing, outward, outward-bound, past, patched, preceding, prehistoric, prehistorical, previous, quondam, recent, retiring, rusty, secondhand, sometime, stale, sunset, superannuated, tense, then, ult, ultimo, used, Victorian, worn, yellow, yellowed

past is a ADJ.

by, past

past is a ADV.

past, past tense, past times, yesteryea, yesteryear, yor, yore

past is a NOUN.