Dictionary.com
Thesaurus.com

game-change

American  
[geym-cheynj] / ˈgeɪmˌtʃeɪndʒ /
Or game change

noun

  1. a dramatic change in course, strategy, basic character, etc..

    Her feelings for him have undergone a game-change.

  2. game-changer.

    He was a game-change, and an asset to the company.


Etymology

Origin of game-change

First recorded in 2000–05

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"With the proliferation of faster internet through 5G, it will game-change the future of work."

From BBC

That’s not why team captain Julie Foudy first consulted with Billie Jean King back in 1999 about how to game-change.

From Washington Post

News & World Report observes, "The New York Republican primary may not have provided the proverbial game-change but it will almost certainly spur a narrative change."

From US News

The company is Verizon and the deal will game-change the size and scale of AOL’s opportunity.

From The Verge

Plaid Cymru believes the television debates, which will give their leader Leanne Wood the opportunity to speak for Wales at the top table this week, could be a game-change and, for the first time, ensure everyone finally gets to grips with multi-party elections.

From BBC