World Series

American  

Or World's Series

noun

Baseball.

1. an annual series of games between the winning teams of the two major leagues: the first team to win four games being champions of the U.S.

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World Series British  

noun

1. baseball (in the US and Canada) a best-of-seven playoff for the world championship between the two winning teams in the major leagues at the end of the season

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World Series Cultural  

1. A series of baseball games held each October between the champions of the two major baseball leagues, the American League and the National League.

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Etymology

Origin of World Series

An Americanism dating back to 1885–90

Example Sentences

This is not a World Series or even a Super Bowl.

From Los Angeles Times • Jun. 7, 2026

The New York Mets last won the World Series in 1986, the Yankees in 2009.

From The Wall Street Journal • Jun. 7, 2026

Former Mayor Rudy Giuliani revered the New York Yankees, which won four World Series championships during his two terms.

From The Wall Street Journal • Jun. 2, 2026

Baseball’s current collective bargaining agreement expires about a month after the World Series, at which point owners are all but certain to initiate a lockout that could threaten the 2027 season.

From The Wall Street Journal • Jun. 1, 2026

Maybe everyone else chose to stay in their air-conditioned homes and watch the World Series game on television.

From "Earthquake Terror" by Peg Kehret