"hisses" in the noun sense
1. hiss, hissing, hushing, fizzle, sibilation
a fricative sound (especially as an expression of disapproval
"the performers could not be heard over the hissing of the audience"
2. boo, hoot, Bronx cheer, hiss, raspberry, razzing, razz, snort, bird
a cry or noise made to express displeasure or contempt
"hisses" in the verb sense
1. hiss, siss, sizz, sibilate
make a sharp hissing sound, as if to show disapproval
2. hiss, whoosh
move with a whooshing sound
3. hiss, sizz, siss, sibilate
express or utter with a hiss
4. boo, hiss
show displeasure, as after a performance or speech
Source: WordNet® (An amazing lexical database of English)
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