Meaning of sound in English

Noun

1. what can be heard

What's that sound?

Verb

1. cause to make a sound or noise

The drums sounded just like thunder.

2. seem to be, appear, or hear

That's sounds interesting.

sound²

Adjective

1. healthy

The doctor said my shoulder had healed and was perfectly sound.

2. deep

I feel better after a sound sleep.

3. sensible

sound judgment

4. strong and firm

The firm's finances are sound. ー The company is in healthy shape financially.