feather bed

mattress stuffed with feathers 羽绒褥垫.

FBI, FC, FCO, FD, fealty, fear, fear for, fearful, fearfully, fearfulness, fearless, fearlessly, fearlessness, fearsome, feasibility, feasible, feasibly, feast, feat, feather, feather-bed, feather-brained, featherweight, feathery, feature, featureless, Feb, febrile, February, fecal, feces, feckless, fecklessly, fecklessness, fecund, fecundity, Fed, fed up, federal, federate,