Definition of Format

Noun: format 'for,mat

The organization of information according to preset specifications (usually for computer processing)
- formatting, data format, data formatting
The general appearance of a publication

Verb: format (formatted,formatting) 'for,mat

Set (printed matter) into a specific format
"Format this letter so it can be printed out";
- arrange
Determine the arrangement of (data) for storage and display (in computer science)
Divide (a disk) into marked sectors so that it may store data
"Please format this disk before entering data!";
- initialize, initialise [Brit]