Dictionary
self-de•fense
Pronunciation: (self'di-fens', self"-), [key]—
n.
1. the act of defending one's person when physically attacked, as by countering blows or overcoming an assailant:
the art of self-defense.
2. a claim or plea that the use of force or injuring or killing another was necessary in defending one's own person from physical attack:
He shot the man who was trying to stab him and pleaded self-defense at the murder trial.
3. an act or instance of defending or protecting one's own interests, property, ideas, etc., as by argument or strategy.
Also, esp. Brit.,self'-de•fence'.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.