In musical notation, silence is indicated by

It is indicated by a rest.
Rests include:
Quarter rests, half rests, and whole rests.

Bonus: if you happen to play in a band ensemble, there is such thing when you rest for more than a single measure or two.

The term collage was coined by both  georges braque  and  pablo picasso  in the beginning of the 20th century when collage became a distinctive part of modern art.hope this sorry if there wasn't more of an explanation!