Synonyms and related words :
a leg up, butt, byword, byword of reproach, chance, clear stage, derision, dupe, fair field, figure of fun, fool, game, gazingstock, goat, jest, jestingstock, joke, laughingstock, liberty, mockery, monkey, occasion, opening, opportunism, opportunity, place, room, scope, stepping-stone, stock, target, time, toy, victim