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Tab: noun - A small flap or strip fixed to an object, by which it can be held, hung, fastened or labelled, a pull tab, ear, list of charges, bill, (in a bar or restaurant), cigarette, tablet, a pill, a curtain, a key on a computer keyboard. verb - Furnish with a tab or tabs, name, label watch, keep tabs on.
'Mae West examined the tab brought by the waiter and offered him money including a generous tip for his good service.'
'Gloria told him she would tab all the points in the typed piece, so they would be easy to identify.'