As a noun:
* The sound of the waves crashing on the shore was soothing.
* The sound of laughter filled the room.
* She couldn't hear a sound above the roar of the crowd.
As a verb:
* The bell sounded at 3 pm, signaling the end of the workday.
* His words sounded hollow and insincere.
* The music sounded beautiful in the concert hall.
As an adjective:
* The sound system at the concert was impressive.
* We had a sound sleep after a long day.
* They made a sound decision to invest in the company.
In idiomatic expressions:
* He's sound as a bell – meaning he is healthy and strong.
* Sound off! – meaning to express your opinion freely.
* She's sound asleep – meaning she's sleeping deeply.
In a figurative sense:
* The idea sounds good in theory, but it's not practical.
* He had a sound reason for leaving.
* The argument was sound and logical.
These examples show the versatility of the word "sound" and its ability to express a variety of meanings and nuances depending on the context.