Definition of "GP"

(roleplaying games, board games, video games) Initialism of gold piece.  examples

(countable, healthcare) Initialism of general practitioner; also G.P.  examples

(uncountable, software, artificial intelligence) Initialism of genetic programming.  examples

(sports) Initialism of games played.  examples

(grand strategy video games) Initialism of great power.  examples

(slang) Initialism of general principle.

(uncountable, slang) Initialism of general public.

(countable) Initialism of guinea pig.  examples

(countable, astronomy) Abbreviation of green pea galaxy.  examples

(Internet) Initialism of grandparent poster; the person two levels up in a nested conversation thread.  examples

Initialism of general-purpose.  examples

(politics) Initialism of Green Party.  examples

(sports, motor) Initialism of Grand Prix.  examples