sibilate vs pronounce

sibilate and pronounce both are verbs.

Word	Noun	Adjective	Verb	Adverb
sibilate	No	No	Yes	No
pronounce	No	No	Yes	No

As verbs, pronounce is a hypernym of sibilate; that is, pronounce is a word with a broader meaning than sibilate:

Other hypernyms of sibilate include articulate, enounce, enunciate, say, sound out.

sibilate (verb)	pronounce (verb)
make a sharp hissing sound, as if to show disapproval	pronounce judgment on
express or utter with a hiss	speak, pronounce, or utter in a certain way
utter a sibilant
pronounce with an initial sibilant