from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A non-compulsory examination taken in the final two years in British high schools.
- n. In Internet prostitution, a euphemism for anal sex.
from The Century Dictionary and Cyclopedia
- n. A leveling instrument used for grading earth-work, leveling ditches, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the advanced level of a subject taken in school (usually two years after O level)
Short for advanced level. (Wiktionary)