suicide

Universal Words noun 1 [U,C] the act of killing yourself deliberately: to commit suicide * an attempted suicide (= one in which the person survives) * a suicide letter / note (= written before sb tries to commit suicide) * a suicide bomber (= who expects to die while trying to kill other people with a bomb) 2 [U] a course of action that is likely to ruin your career, position in society, etc: It would have been political suicide for him to challenge the allegations in court. 3 [C] (formal) a person who commits suicide