- 1to make someone become unconscious or die by preventing them from breathing synonym suffocate
- 2 He was asphyxiated by the smoke. asphyxiating gases
NAmE//əˈsfɪksiˌeɪt//asphyxiate somebodyVerb Forms present simple I / you / we / they asphyxiate
he / she / it asphyxiates
past simple asphyxiated
-ing form asphyxiating
asphyxiationjump to other results
NAmE//əˌsfɪksiˈeɪʃn//noun [uncountable] The cause of death was asphyxiation.