YP

YP (countable and uncountable, plural YPs)

1. (UK) Initialism of young prisoner.
   • 2011, Charles Bronson, Loonyology: The Autobiography of Britain's Most Notorious Prisoner:

     First it was an adult mixed prison, then a female borstal. Now it's a long-term secure jail for YPs, mostly lifers.

   • 2013, Lenny McLean, The Guv'nor:

     First, you're classed as a YP (young prisoner) if you're under 21. If it's your first time in prison, they class you as a star prisoner and that separates you from the ones who have been inside before.

2. Alternative form of Yp.
3. (computing) Initialism of Yellow Pages, a network protocol invented by Sun Microsystems

   Synonym: NIS

• PY, py

YP

1. (politics) Initialism of Yurt Partisi (Homeland Party).