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

3

slang + impolite : amorous touching or caressing especially of the breasts

—usually used in phrases like get to second base or reach second base

We had started making out, but he had only gotten to second base so far.

—Helene Cooper

compare first base sense 4, home base sense 3, third base sense 3

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

When a batter gets thrown out at second base for trying to turn a single into a double, fans get frustrated. — Doug Turnbull, AJC.com, 4 Oct. 2026

Chicago White Sox left fielder Sam Antonacci (17) watches as shortstop Chase Meidroth (10) fields a ground ball and tags second base in the tenth inning of a game against the Cleveland Guardians at Rate Field on Wednesday, June 24, 2026. — Chicago Tribune, 2 Oct. 2026

The Marlins have invested heavily in developing young talent, and 2026 gave some of those players valuable experience at the professional level, including Jared Serna, who made a remarkable play at second base Saturday. — Brandon Liguori, Miami Herald, 27 Sep. 2026

In the ninth inning, Josh Naylor reached on a walk and stole second base, becoming the first first baseman since George Sisler in 1920-1922 to have consecutive 30-steal seasons. — Los Angeles Times, 27 Sep. 2026

Word History

First Known Use

1848, 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