What is the meaning of the word "game plan"?

Definitions:

  1. (figurative) a carefully thought out strategy for achieving an objective in war or politics or business or personal affairs copy to clipboard noun
    • newscasters speculated about the President's game plan for an invasion copy to clipboard
  2. a plan for achieving an objective in some sport copy to clipboard noun
    • The coach had a drastic change in game plan for the second half. copy to clipboard