hiss

(noun) a fricative sound (especially as an expression of disapproval). Synonyms: hissing, hushing, fizzle, sibilation. Examples: "The performers could not be heard over the hissing of the audience."

(noun) a cry or noise made to express displeasure or contempt. Synonyms: boo, hoot, Bronx cheer, raspberry, razzing, razz, snort, bird.

(verb) make a sharp hissing sound, as if to show disapproval. Synonyms: siss, sizz, sibilate.

(verb) move with a whooshing sound. Synonyms: whoosh.

(verb) express or utter with a hiss. Synonyms: sizz, siss, sibilate.

(verb) show displeasure, as after a performance or speech. Synonyms: boo.