| World Series or World's Series | |
| —n | |
| 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 | |
| World's Series or World's Series | |
| —n | |
| a gadget; dingus; thingumbob. |
| the offspring of a zebra and a donkey. |
| World Series or World's Series | |
| —n | |
| 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 | |
| World's Series or World's Series | |
| —n | |
A series of baseball games held each October between the champions of the two major baseball leagues, the American League and the National League.