hiss vs fizzle

hiss and fizzle both are nouns.

Word	Noun	Adjective	Verb	Adverb
hiss	Yes	No	Yes	No
fizzle	Yes	No	Yes	No

As nouns, hiss and fizzle are synonyms defined as:

hiss and fizzle: a fricative sound (especially as an expression of disapproval)

Other synonyms of hiss include hissing, hushing, sibilation.

hiss (noun)	fizzle (noun)
a cry or noise made to express displeasure or contempt	a complete failure
a fricative sound (especially as an expression of disapproval)	a fricative sound (especially as an expression of disapproval)

hiss (verb)	fizzle (verb)
make a sharp hissing sound, as if to show disapproval	end weakly
express or utter with a hiss
show displeasure, as after a performance or speech
move with a whooshing sound