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

Thinking there were two outs when the ball was hit, however, neither Anthony Seigler at third base nor Nick Sogard at first tagged up properly. — CBS News, 11 Aug. 2026

In order for the run not to score, Toronto would have had to make an appeal at third base before the infielders left the infield. — Gabrielle Starr, Boston Herald, 11 Aug. 2026

While Boston got the tying runner to third base in the ninth, Jays closer Louis Varland finished off the game to secure the win. — Mitch Bannon, New York Times, 11 Aug. 2026

Guccione told a pool reporter after the game that the Blue Jays would have had to appeal at third base before leaving the field to prevent that run. — ABC News, 10 Aug. 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