pronounce vs sound out

pronounce and sound out both are verbs.

Word	Noun	Adjective	Verb	Adverb
pronounce	No	No	Yes	No
sound out	No	No	Yes	No

As verbs, pronounce and sound out are synonyms defined as:

Other synonyms of pronounce include articulate, enounce, enunciate, say.

pronounce (verb)	sound out (verb)
pronounce judgment on	try to learn someone's opinions and intentions
speak, pronounce, or utter in a certain way	speak, pronounce, or utter in a certain way