1 suffocate, stifle, choke, asphyxiate; throttle, strangle, snuff (out), kill:
He was accused of trying to smother his wife with a pillow.
2 be suffocated or stifled or asphyxiated, be choked or strangled, be killed:
The infant apparently smothered in the blanket.
3 overwhelm, overcome, blanket, inundate, cover, shower; envelop, wrap, enshroud, surround:
The children crowded round and smothered her with kisses. The banquet table was smothered in white roses
4 repress, subdue, suppress, conceal, hide, keep or hold back, cover up, mask, choke back or down, check; stifle, muffle, blanket, blank out:
He managed to smother his grief and put on a brave face. Our whispers were smothered by the noise of the hi-fi
5 extinguish, put out, snuff out:
The foam from the fire extinguisher smothered the blaze in a few moments.