sibilation vs fizzle

sibilation and fizzle both are nouns.

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

As nouns, sibilation and fizzle are synonyms defined as:

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

Other synonyms of sibilation include hiss, hissing, hushing.

sibilation (noun)	fizzle (noun)
pronunciation with a sibilant (hissing or whistling) sound	a complete failure
a fricative sound (especially as an expression of disapproval)	a fricative sound (especially as an expression of disapproval)

sibilation (verb)	fizzle (verb)
	end weakly