defeat (Noun) — An unsuccessful ending to a struggle or contest. ex. "it was a narrow defeat" ex. "the army's only defeat"
defeat (Noun) — The feeling that accompanies an experience of being thwarted in attaining your goals.
defeat (Verb) — Win a victory over. ex. "defeat your enemies"
defeat (Verb) — Thwart the passage of. ex. "defeat a motion"