Definition of suicide noun from the Oxford Advanced American Dictionary

     

    suicide

     noun
    noun
    NAmE//ˈsuəˌsaɪd//
     
     
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  1. 1[uncountable, countable] the act of killing yourself deliberately to commit suicide an attempted suicide (= one in which the person survives) a suicide bomber (= who expects to die while trying to kill other people with a bomb) a suicide letter/note (= written before someone tries to commit suicide ) see also assisted suicide
  2. 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. 3[countable] (formal) a person who commits suicide
See the Oxford Advanced Learner's Dictionary entry: suicide