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

After a strikeout for the second out, Newport batter Noah Whitaker, with Horsley breaking for third base and Hatfield for second, was called out for batter’s interference on Ganesha catcher Dyson Grant’s throw to second base, a throw that sailed into center field. —Steve Fryer, Oc Register, 27 May 2026

Alexander attempted a pickoff at first base, but his throw skirted away and Clark advanced from first to third base. —Gqlshare, Daily News, 27 May 2026

Hernández had been filling in for Max Muncy at third base, while Muncy recovered from being hit by a pitch on the right wrist on Friday in Milwaukee. —Maddie Lee, Los Angeles Times, 27 May 2026

Hernández will see playing time at second and third base and possibly relieve an outfielder at times. —CBS News, 26 May 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