smother, surround -- (envelop completely; "smother the meat in gravy")
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")
smother, stifle, strangle, muffle, repress -- (conceal or hide; "smother a yawn"; "muffle one's anger"; "strangle a yawn")
smother -- (form an impenetrable cover over; "the butter cream smothered the cake")
smother, put out -- (deprive of the oxygen necessary for combustion; "smother fires")