suicide

n. act of intentionally taking one's own life; act of destroying one's own interests; one who commits suicide

Suicide (Latin sui caedere, to kill oneself) or Self-murder, is the act of intentionally terminating one's own life. Suicide occurs for a number of reasons such as depression, substance abuse, shame, avoiding pain, financial difficulties or other undesirable fates. Views on suicide have been influenced by cultural views on existential themes such as religion, honor, and the meaning of life. Most Western and Asian religions—the Abrahamic religions, Buddhism, Hinduism—consider suicide a dishonorable act; in the West it was regarded as a serious crime and offense against God due to religious belief in the sanctity of life. Japanese views on honor and religion led to seppuku being respected as a means to atone for mistakes or failure during the samurai era; Japanese suicides rates remain some of the developed world's highest. In the 20th century suicide in the form of self-immolation has been used as a form of protest, and in the form of kamikaze and suicide bombing as a military tactic or terrorist tactic.
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Suicide is defined as the intentional taking of one's own life. Prior to the late nineteenth century, suicide was legally [more]Suicide - Community and Resources

Noun
1. the act of killing yourself; "it is a crime to commit suicide"
(synonym) self-destruction, self-annihilation
(hypernym) killing, kill, putting to death
(hyponym) assisted suicide
2. a person who kills himself intentionally
(synonym) felo-de-se
(hypernym) killer, slayer

n. suicide, self murder

v. commit suicide, kill oneself