second base

noun

1

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

2

: the player position for defending the area on the first-base side of second base

second baseman noun

Examples of second base in a Sentence

He slid into second base.

He used to play second base for the Red Sox.

Recent Examples on the Web

Tolbert threw wildly to second base, and that allowed a run to score. — Kansas City Star, 22 July 2026

Catcher Daniel Susac pounced on the ball and delivered a perfect strike to second base. — Justice Delos Santos, Mercury News, 21 July 2026

With the Red Sox trailing 4-3 in the bottom of the sixth inning with a man on second base, Contreras pummeled Orioles starter Shane Baz’s 86-mph knuckle-curve off the Green Monster. — Ryan Canfield, FOXNews.com, 21 July 2026

Pinch-runner Oswald Peraza scored from second base and pinch-runner Jose Siri reached third. — Los Angeles Times, 21 July 2026

Word History

First Known Use

1845, in the meaning defined at sense 1

Rhymes for second base

• aerospace
• anatase
• anyplace
• commonplace
• cyberspace
• database
• diabase
• diastase
• dnase
• elastase
• fireplace
• hyperspace

Kids Definition

second base

noun

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