THESAURUS
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, figurehead, fill-in, gate, ghost, ghostwriter, imitation, lieutenant, locum, locum tenens, makeshift, metaphor, metonymy, next best thing, paranymph, personnel, phony, 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, surrogate, symbol, synecdoche, third string, token, understudy, utility man, utility player, vicar, vicar general, vice, vice-president, vice-regent, vicegerent
