| hiss | (noun) a cry or noise made to express displeasure or contempt | Synonyms: bird, boo, Bronx cheer, hoot, raspberry, razz, razzing, snort |
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| (noun) a fricative sound (especially as an expression of disapproval) | Synonyms: fizzle, hissing, hushing, sibilation |
| (verb) make a sharp hissing sound, as if to show disapproval | Synonyms: sibilate, siss, sizz |
| (verb) express or utter with a hiss | Synonyms: sibilate, siss, sizz |
| (verb) show displeasure, as after a performance or speech | Synonyms: boo |
| (verb) move with a whooshing sound | Synonyms: whoosh |