'Suicide' definitions:

Definition of 'suicide'

From: WordNet
noun
The act of killing yourself; "it is a crime to commit suicide" [syn: suicide, self-destruction, self- annihilation]
noun
A person who kills himself intentionally [syn: suicide, felo-de-se]

Definition of 'Suicide'

From: GCIDE
  • Suicide \Su"i*cide\, n. [L. sui of one's self (akin to suus one's own) + caedere to slay, to kill. Cf. So, adv., Homicide.]
  • 1. The act of taking one's own life voluntary and intentionally; self-murder; specifically (Law), the felonious killing of one's self; the deliberate and intentional destruction of one's own life by a person of years of discretion and of sound mind. [1913 Webster]
  • 2. One guilty of self-murder; a felo-de-se. [1913 Webster]
  • 3. Ruin of one's own interests. "Intestine war, which may be justly called political suicide." --V. Knox. [1913 Webster]