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.

---

Other Word Forms

• game-changing adjective

Etymology

Origin of game-changer

First recorded in 1960–65

Example Sentences

"The game-changer is voting," Laurianne Trimoulla, spokeswoman for Gallifrey Foundation, told AFP.

From Barron's

It has been described as a game-changer in the fight against HIV, and Okuhle worries that if more mobile clinics were to shut down, many young people and township residents would stop taking preventative medicine.

From BBC

But the game-changer for me was what I got beyond the food.

From The Wall Street Journal

Considering the Seahawks defense allowed the fifth-most rushing yards to quarterbacks this season, Maye’s legs could be a game-changer.

From Los Angeles Times

Olberg believes the US position on MFN is "a game-changer".

From Barron's