to make with the mouth a prolonged sound like that of the letter s, by driving the breath between the tongue and the teeth; to make with the mouth a sound like that made by a goose or a snake when angered; esp., to make such a sound as an expression of hatred, passion, or disapproval.-to make a similar noise by any means; to pass with a sibilant sound; as, the arrow hissed as it flew.-to condemn or express contempt for by hissing.-to utter with a hissing sound.-a prolonged sound like that letter s, made by forcing out the breath between the tongue and teeth, esp. as a token of disapprobation or contempt.-any sound resembling that above described-the noise made by a serpent.-the note of a goose when irritated.-the noise made by steam escaping through a narrow orifice, or by water falling on a hot stove.