(criminology) A murder in which the killer subsequently commits suicide.

A period of monitoring of someone, especially a prisoner deemed likely to commit suicide, to ensure they do not attempt suicide.

(informal) A suicide in which a person points a firearm at an armed police officer to provoke them to shoot.

Suicide with the help of another person; especially suicide of a terminally ill person with the help of a physician.

plural of suicide note

(slang) The depressive period that typically occurs midweek, nominally on the Tuesday, following weekend (Friday or Saturday) use of party drugs such as ecstasy.

(baseball) A play by the team at-bat where with a runner at third base, the batter puts down a sacrifice bunt with the aim of allowing the runner to score. In contrast to a safety squeeze, the runner sets off from third as soon as the pitch is made, allowing him or her to start running much earlier than on a safety squeeze.

One who carries explosives on his or her body or in a vehicle and intends to detonate them (dying in the process) to kill people and inflict widespread damage, usually motivated by a political or religious cause.

(slang, US) A semi-trailer driver pulling a tanker trailer with gasoline or other explosive or hazardous substance.

To kill oneself; to take one's own life.