Synonyms of 'backup'

about-face, agent, champion, change, comparison, copy, counterfeit, deputy, double, equal, ersatz, exchange, fake, fill-in, imitation, makeshift, provisional, relief, replacement, representative, reserve, reversal, reverse, right-about, sign, stand-in, succedaneum, temporary, turnabout, vice-president, vice-regent, vicegerent, spare, second string, secondary, ringer, reversion, proxy, procurator, pleader, pinch, phony, personnel, paranymph, mock, metonymy, metaphor, locum tenens, locum, lieutenant, ghost, figurehead, exponent, executive officer, equivalent, dummy, changeling, backing, attorney, analogy, amicus curiae, alter ego, alternative, alternate, volte-face, vice, vicar general, vicarious, vicar, utility, understudy, token, tentative, synecdoche, symbol, surrogate, substitute, substituent, sub, stopgap