A Quick and Simple Dictionary

tab

1. Noun.  A small flap or strip of material attached to something, for holding, manipulation, identification, etc.
2. Noun.  (by extension) (graphical user interface) A navigational widget for switching between sets of controls or documents. .
3. Noun.  (informal) A tablet, especially one containing illicit drugs.
4. Noun.  (context, British Army) A fast march or run with full kit.
5. Noun.  (slang) A student of Cambridge University, derived from the Latin ''Cantabrigia'' (often shortened to Cantab.).
6. Verb.  Mark with a tab.
7. Verb.  (computing) To use the Tab key on a computer or typewriter to navigate the screen or page.
8. Verb.  Short for tabulate.
9. Noun.  (informal) A restaurant bill.
10. Noun.  (slang) Credit account, e.g., in a shop or bar.
11. Noun.  Short for tabulator.
12. Noun.  (computing) A space character ((unsupported, tab) ) that extends to the next aligned column, traditionally used for tabulation.
13. Noun.  (Geordie) cigarette.
14. Noun.  A form of musical notation indicating fingering rather than the pitch of notes, commonly used for stringed instruments.