hiss vs outcry

hiss and outcry both are nouns.

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

As nouns, outcry is a hypernym of hiss; that is, outcry is a word with a broader meaning than hiss:

Other hypernyms of hiss include call, cry, shout, vociferation, yell.

hiss (noun)	outcry (noun)
a cry or noise made to express displeasure or contempt	a loud utterance; often in protest or opposition
a fricative sound (especially as an expression of disapproval)

hiss (verb)	outcry (verb)
make a sharp hissing sound, as if to show disapproval	utter aloud; often with surprise, horror, or joy
express or utter with a hiss	shout louder than
show displeasure, as after a performance or speech
move with a whooshing sound