Meaning of “sound” - Learner’s Dictionary

sound

verb us uk /saʊnd/
"He sounds a very interesting man." "He is indeed."His story sounds a bit fishy to me.The review made the film sound interesting.His plans for the event sound inadequate.The arrangements for the conference sound complicated.
sound good/interesting/strange, etc

A2 to seem good/interesting/strange, etc, from what you have heard or read:

Your job sounds really interesting.
sound like/as if/as though

B1 to seem like something, from what you have heard or read:

That sounds like a really good idea.
I don't want to sound as if I'm trying to create extra problems.
sound angry/happy/rude, etc

B2 to seem angry/happy/rude, etc when you speak:

You don't sound too sure about it.

[ I, T ] to make a noise:

It looks and sounds like a real bird.
If the alarm sounds, you must leave the building immediately.

(Definition of “sound verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)