Synonyms and related words :
advocate, agent, alter ego, alternate, alternative, amicus curiae, analogy, attorney, backup, backup man, champion, change, changeling, comparison, copy, counterfeit, deputy, double, dummy, equal, equivalent, ersatz, exchange, executive officer, exponent, fake, father figure, father image, figurehead, fill-in, ghost, ghostwriter, imitation, lieutenant, locum, locum tenens, makeshift, metaphor, metonymy, mother figure, mother surrogate, next best thing, paranymph, personnel, phony, pinch hitter, pleader, procurator, proxy, relief, replacement, representative, reserves, ringer, second in command, second string, secondary, sign, spares, stand-in, sub, substituent, substitute, substitution, succedaneum, superseder, supplanter, symbol, synecdoche, third string, token, understudy, utility man, utility player, vicar, vicar general, vice, vice-president, vice-regent, vicegerent