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
Ramlah	-	Arabic
RosÁLia	roo-ZA-lyə	Portuguese
Margaretta	mahr-gə-RET-ə	English
Lisa	LEE-sə (English), LEE-zah (German), LEE-sah (Dutch)	English, German, Dutch, Swedish, Norwegian, Danish, Italian
Aubin	-	French
Bairstow	['bɛəstəu]