third base

noun

1

: the base that must be touched third by a base runner in baseball

2

: the player position for defending the area around third base

third baseman noun

Examples of third base in a Sentence

a runner on third base

Recent Examples on the Web

There is more time to get the ball out from third base, which Bichette anticipated, but wasn’t able to fully get a feel for during his offseason workouts. —Abbey Mastracco, New York Daily News, 12 Feb. 2026

Miller, who will split his time between third base and shortstop, looms as a potential in-season addition. —Matt Gelb, New York Times, 11 Feb. 2026

Team officials have floated the idea of Paredes moving around and getting at-bats at third base, first base, second base and DH. —Matt Kawahara, Houston Chronicle, 11 Feb. 2026

The Mets made a splash, signing Bo Bichette to play third base, traded for Marcus Semien to play second base and signed Jorge Polanco to play first base. —Ryan Canfield, FOXNews.com, 10 Feb. 2026

Word History

First Known Use

1845, in the meaning defined at sense 1

Rhymes for third base

• abase
• airspace
• apace
• backspace
• biface
• birthplace
• blackface
• boldface
• bookcase
• braincase
• briefcase
• carcase

Kids Definition

third base

noun

: the base that must be touched third by a base runner in baseball or the position of the player defending the area around it