verb
compress
kuhm-PRESS/kəmˈpres/
To reduce the space occupied by something.
The hands compress the bulky pillow to fit it into the travel bag.

Etymology
The pieces give the literal image “press together.” Compress retains that physical sense: pressing or packing something together forces it into a smaller space.
In context
what does it mean to compress a file make it yeah to make it smaller
More examples
- I compress my sleeping bag to fit it into my backpack.
- The piston compresses the air inside the cylinder.
- She compressed the files to save storage space.
Forms
compress · compresses · compressed · compressing
compression noun — The process of making something occupy less space.
compressible adjective — Able to be pressed into less space.