Feelings, thoughts, contemplation of, a preoccupation with or a general desire for one's own suicide, or the idea of ceasing to exist.

(card games, slang) A king of hearts in a deck of playing cards.

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.

An agreement between two or more people to commit suicide.

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

A message, usually a written note, left by someone who later attempts or commits suicide, usually explaining the reason for the suicide.

plural of suicide note

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

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