discard

(noun) anything that is cast aside or discarded.

(noun) (cards) the act of throwing out a useless card or of failing to follow suit.

(noun) getting rid something that is regarded as useless or undesirable. Synonyms: throwing away.

(verb) throw or cast away. Synonyms: fling, toss, toss out, toss away, chuck out, cast aside, dispose, throw out, cast out, throw away, cast away, put away. Example: "Put away your worries."