Wiktionary cast out vb. To drive out; to expel. WordNet cast out v. expel from a community or group [syn: banish, ban, ostracize, ostracise, shun, blackball] throw or cast away; "Put away your worries" [syn: discard, fling, toss, toss out, toss away, chuck out, cast aside, dispose, throw out, throw away, cast away, put away]