a zero-sum game

a situation where two people compete and if one of them wins anything, exactly the same must be lost by the other Radio has become a zero-sum game, with stations gaining listeners only at each other's expense.

Common Names:

Name	Pronounced	Usage
Elmo
Earleen	URL-een	English (Rare)
Ward	[wɔ:d]
Hodel	-	Yiddish
Sroel	-	Yiddish
Pia	PEE-ah (Italian, Danish, German)	Italian, Swedish, Norwegian, Danish, German, Polish, Slovene, Late Roman