asphyxiate has definitions from the field of biology
1
[ verb ] (biology) kill by constricting the throat and preventing from breathing

Examples

"Othello suffocated Desdemona with a pillow"

2
[ verb ] impair the respiration of or obstruct the air passage of

Examples

"The foul air was slowly suffocating the children"

Related terms

obstruct choking asphyxiation

3
[ verb ] deprive of oxygen and prevent from breathing

Synonyms

suffocate smother

Examples

"Othello smothered Desdemona with a pillow" "The child suffocated herself with a plastic bag that the parents had left on the floor"

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