Technically what you mean by Sound?

Sound is generic and encompassing, but in this context the technical aspect of it can be broken down in to different sections namely;

1 Live Sound - that is live recording either in music studio, radio stations and televisions.

2 Folly - the sound created for movies and adverts.

3 Production and Arrangement - with a software called Cubase, Reason.

4 Sound Editing - mixing and mastering using software called Pro Tools and Wavelab. 

I mean that the sound recoring or editing for cenima or songs or for any other purposes, using recoring and editing programs such as ( pro tools , audition , sound forge , ...etc) 

the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium

The changes in airpressure that reach the eardrum.

This is the vibration of objects which causes the air sorounding it to vibrate,this also refers to the range of frequencies dectectable by human ears.

The sound is a some of frequency and vibration

 can be judged  its quality only by ears instead of audio gear.

Smooth Production with as minimum as delay and having good quality and quantities.

this is all ears listening

hz- khz hearing ability is sound.

Editing sound/audio tracks, arrangement and making a session ready for Mixing