Tra từ suicide - Từ điển Oxford Advanced Learner 8th

sui·cide [suicide suicides suicided suiciding] BrE [ˈsuːɪsaɪd] BrE [ˈsjuːɪsaɪd] NAmE [ˈsuːɪsaɪd] noun
1. uncountable, countable 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)
see also ↑assisted suicide
2. uncountable 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. countable (formal)a person who commits suicide

Word Origin:
mid 17th cent.: from modern Latin suicida ‘act of suicide’, suicidium ‘person who commits suicide’, from Latin sui ‘of oneself’ + caedere ‘kill’.

Example Bank:
•He slashed his wrists in a failed suicide attempt.
•He was put on suicide watch earlier in his prison term.
•Her death was ruled an apparent suicide.
•Members of the sect committed mass suicide.
•Raising taxes before an election would be political suicide.
•That's asking them to commit career suicide.
•The couple died together in a suicide pact.
•There is no evidence that he is a suicide risk.
•Wearing shoes like that would be social suicide.
•a suicide bomb attack on a military convoy
•the questions surrounding euthanasia and assisted suicide
•the ritual suicide of a widow on her husband's funeral pyre
•He hadn't left a suicide note.
•His sister had committed suicide when she was in her twenties.
•It was a case of attempted suicide.
•The attack had been carried out by a suicide bomber.