To overcome in battle or contest.
To nullify
To prevent (something) from being achieved.
To reduce, to nothing, the strength of.
The act or instance of being defeated, of being overcome or vanquished; a loss.
Frustration (by prevention of success), stymieing; (law) nullification.
The act or instance of defeating, of overcoming, vanquishing.
To defeat decisively, to suppress.
To void or suppress (a subpoena, decision, etc.).