Read the dictionary definition of tab. All definitions for this word.
1. a dose of medicine in the form of a small pellet
2. a short strip of material attached to or projecting from something in order to facilitate opening or identifying or handling it
1. pull the tab to open the can
2. files with a red tab will be stored separately
3. the collar has a tab with a button hole
4. the filing cards were organized by cards having indexed tabs
3. the key on a typewriter or a word processor that causes a tabulation
4. sensationalist journalism
5. the bill in a restaurant
1. he asked the waiter for the check