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World Series

or World's Series

noun Baseball.

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.

Origin of World Series

An Americanism dating back to 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for world series

World Series

World's Series

noun

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
world series in Culture

World Series

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

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.