Definitions
1.nounA ball game played by individuals competing against one another in which the object is to hit a ball into each of a series of (usually 18 or nine) holes in the minimum number of strokes.
2.nounThe letter G in the ICAO spelling alphabet.
3.verbTo play the game of golf.
4.verbTo write something in as few characters as possible (e.g. in code golf, regex golf)