also: ワールド・シリーズ
World Series; MLB championship series
Baseball term for the annual championship series of Major League Baseball, not a generic term for any world championship.
This year's World Series went all the way to Game 7.
He hit a home run in the World Series.
The team made it to the World Series for the first time in ten years.
The Yankees won the World Series last year.
The Dodgers claimed the World Series with four straight wins.