game-changer

American  

[geym-cheyn-jer] / ˈgeɪmˌtʃeɪn dʒər /

Or game changer

noun

1. Sports. an athlete, play, etc., that suddenly changes the outcome of a game or contest.

2. a person or thing that dramatically changes the course, strategy, character, etc., of something.

   Social media has been a real game-changer in the company’s marketing efforts.

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Other Word Forms

• game-changing adjective

Etymology

Origin of game-changer

First recorded in 1960–65

Example Sentences

How much of a game-changer will the new 'daylight' offside rule prove to be?

From BBC

“That will be the game-changer,” he said.

From The Wall Street Journal

He was a game-changer for Rovers.

From BBC

Could Declan Rice's set-piece expertise be a World Cup game-changer for England head coach Thomas Tuchel?

From BBC

Robinson believes "football snobbery" is behind some of the reluctance to embrace set-pieces as a potential game-changer.

From BBC