a small flap, strap, loop, or similar appendage, as on a garment, used for pulling, hanging, or decoration.

a tag or label.

a small projection from a card, paper, or folder, used as an aid in filing.

Informal . a bill, as for a meal in a restaurant; check.

a small piece attached or intended to be attached, as to an automobile license plate.

a small flap or tongue of material used to seal or close the opening of a container.

Also called tabulator. a stop on a typewriter, actuated by a key, that moves the carriage, typing element, etc., a predetermined number of spaces, used for typing material in columns, for fixed indentations, etc.

a programmed command on a computer, actuated by a key, that moves the cursor or printhead a predetermined number of spaces, used for keying material in columns, for fixed indentations, etc.

Theater .

a small, often narrow, drop curtain, for masking part of the stage.

tableau curtain.

Aeronautics . a small airfoil hinged to the rear portion of a control surface, as to an elevator, aileron, or rudder. Compare trim tab .

to furnish or ornament with a tab or tabs.

to name or designate.

Also, tabulate. to operate the tab function on a typewriter or computer. ?

keep tabs or tab on

Informal . to keep an account of; check on; observe

The police kept tabs on the suspect's activities.

noun

bookmark , clip , flag , flap , holder , logo , loop , marker , slip , sticker , stop , strip , tag , account , charge , check , cost , invoice , price , price tag , rate , reckoning , score , statement , tariff , bill , (colloq.) account , label , record , tally