Definitions
1.verbTo overcome in battle or contest."Wellington defeated Napoleon at Waterloo."
2.verbTo reduce, to nothing, the strength of.
3.verbTo nullify
4.nounThe act or instance of being defeated, of being overcome or vanquished; a loss."Licking their wounds after a temporary defeat, they planned their next move."
5.nounThe act or instance of defeating, of overcoming, vanquishing."The inscription records her defeat of the country's enemies in a costly war."
6.nounFrustration (by prevention of success), stymieing; nullification.
7.nounDestruction, ruin.