hiss vs verbalize

hiss is a noun but verbalize is not a noun.

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

As verbs, verbalize is a hypernym of hiss; that is, verbalize is a word with a broader meaning than hiss:

Other hypernyms of hiss include mouth, speak, talk, utter, verbalise.

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

hiss (verb)	verbalize (verb)
make a sharp hissing sound, as if to show disapproval	convert into a verb
express or utter with a hiss	express in speech
show displeasure, as after a performance or speech	be verbose
move with a whooshing sound	articulate; either verbally or with a cry, shout, or noise