(idiomatic, sports) Competing in a game, with a chance of winning. / (idiomatic) Focused; engaged; serious. / Used other than figuratively or idiomatically: in the game.

A mind game where the objective is to avoid thinking about "The Game", and by thinking about it one loses, and subsequently has to announce one's loss to the world in order to make them lose.

A quantity found in a game.

(archaic) Full of game (prey for a hunter). / Characteristic of prey; game-like. / Having the characteristics of a game that can be played. / Pertaining to games.

(informal) One's highest level of performance; one's best form.

simple past tense and past participle of game

(intransitive) To gamble. / (intransitive) To play card games, board games, or video games.

A playful activity that may be unstructured; an amusement or pastime.

(colloquial) Willing to participate. / (of an animal) That shows a tendency to continue to fight against another animal, despite being wounded, often severely.

Injured, lame (of a limb).