Adverb

1. With an agreement or intention to retain what one gains or receives.

   When we gamble at poker, we play for keeps.

2. To compete seriously, with a strong resolve to win or succeed, as in sports or business.
   • 2007, "Steelers' Defense Anticipates Patriots Matchup," KDKA.com (Pittsburg), 7 Dec.,

     "We both got a job to do. They play for keeps and we play for keeps too," Haggans said.

3. Permanently.
   • 1925, "Golf: Shenecossett Invitation," Time, 10 Aug.,

     The Griswold trophy was presented to its winner, for keeps, since it was the third time she had won it.