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

The team also promoted third base coach Dusty Wathan to bench coach, per the Athletic. —Fiifi Frimpong, New York Daily News, 28 Apr. 2026

Double-A manager Chad Epperson will take over as interim third base coach and WooSox hitting coach Collin Hetzler has been elevated to the big league staff, but beyond that Breslow said more additions will be made and that Tracy will have a voice in assembling his new staff. —Mac Cerullo, Chicago Tribune, 27 Apr. 2026

The 28-year-old started 94 games at first base last season and has also played third base, left field and right field. —Peter Sblendorio, Hartford Courant, 27 Apr. 2026

With the potential tying run at third base, Nationals leadoff hitter James Wood — who has the fourth-best OPS in the league — struck out swinging and Domínguez earned his sixth save. —CBS News, 25 Apr. 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