- Short for tabulator.
- A form of musical notation indicating fingering rather than the pitch of notes, commonly used for stringed instruments.
- (informal) A tablet, especially one containing illicit drugs.
- (slang) Credit account, e.g., in a shop or bar.
"Put this round on my tab, will you, barman."
- (Geordie and Mackem) cigarette.
"Giv'is a tab man!"
- (colloquial) A tabloid newspaper.
- (by extension, graphical user interface) A navigational widget, resembling a physical tab, for switching between documents or sets of controls.
- (informal) A restaurant bill.
- (computing) A space character ( ) that extends to the next aligned column, traditionally used for tabulation.
- (Britain, slang) A student of Cambridge University.
- A small flap or strip of material attached to something, for holding, manipulation, identification, etc.
- (British Army, military slang) A fast march or run with full kit.
- (computing) To use the Tab key on a computer or typewriter to navigate the screen or page.
- Mark with a tab.
- Short for tabulate.