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

"The foul air was slowly suffocating the children"

"He is suffocating--living at home with his aged parents in the small village"

"His job suffocated him"

"The child suffocated under the pillow"

"The room was hot and stuffy and we were suffocating"

"he swallowed a fishbone and gagged"