definition of
hiss

[1] #1 hiss v. [siss, sizz, sibilate] make a sharp hissing sound, as if to show disapproval. wn

[2] #2 hiss n. [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". wn

[3] #3 hiss n. [boo, hoot, Bronx cheer, raspberry, razzing, razz, snort, bird] a cry or noise made to express displeasure or contempt. wn

[4] #4 hiss v. [whoosh] move with a whooshing sound. wn

[5] #5 hiss v. [sizz, siss, sibilate] express or utter with a hiss. wn