1) Be asphyxiated 2) Die from lack of oxygen 3) Kill 4) Smother 5) Suffocate 6) To be smothered or suffocated 1) Choke 2) Smother 3) Suffocate 
• (v. t.) To bring to a state of asphyxia; to suffocate. [Used commonly in the past pple.]
To induce asphyxia. ... (05 Mar 2000) ... 
(as-fik´se-āt) to suffocate; to deprive of oxygen for utilization by the tissues.
As·phyx'i·ate transitive verb To bring to a state of asphyxia; to suffocate. [ Used commonly in the past pple.] 
Type: Term Pronunciation: as-fik′sē-āt Definitions: 1. To induce asphyxia.
verb be asphyxiated; die from lack of oxygen; `The child suffocated under the pillow`