Definitions:
a small flap or strip of material attached to or projecting from something, used to hold, fasten, or manipulate it, or for identification and information.

a second or further document or page that can be opened on a spreadsheet or web browser.

a restaurant bill

a part of a control surface, typically hinged, that modifies the action or response of the surface.

a cigarette.

mark or identify with a projecting piece of material

a facility in a word-processing program, or a device on a keyboard, for advancing to a sequence of set positions in tabular work

use the tab key on a computer or typewriter keyboard

a tablet, especially one containing an illicit drug

a tabloid newspaper

totalizator agency board.

typhoid–paratyphoid a and b vaccine.