tab

A small flap or strip of material attached to something, for holding, manipulation, identification, opening etc.

An ear.

(by extension) A navigational widget, resembling a physical tab, for switching between documents or sets of controls.

The page or form associated with such a navigational widget.

“How many tabs are open in your Web browser?”

(British army) A fast march or run with full kit.

To affix with tabs; to label.

A restaurant bill.

Credit account, e.g., in a shop or bar; slate

“Put this round on my tab, will you, barman.”

A space character that extends to the next aligned column, traditionally used for tabulation.

To use the Tab key on a computer to advance the cursor or move the input focus, or on a typewriter to advance the carriage.

A cigarette.

“Giv'is a tab man!”

A form of musical notation indicating fingering rather than the pitch of notes, commonly used for stringed instruments.

(British slang) A student of Cambridge University.

A tabloid newspaper.

A tablet, especially one containing illicit drugs.

A tableau curtain.