smother, asphyxiate, suffocate -- (deprive of oxygen and prevent from breathing; "Othello smothered Desdemona with a pillow"; "The child suffocated herself with a plastic bag that the parents had left on the floor")
suffocate, stifle, asphyxiate, choke -- (impair the respiration of or obstruct the air passage of; "The foul air was slowly suffocating the children")
suffocate, stifle, asphyxiate -- (be asphyxiated; die from lack of oxygen; "The child suffocated under the pillow")
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