grand slam

noun

1
baseball : a home run hit with the bases loaded
… the Dodgers' Eric Karros has a shot to become the first player in history to get 200 career home runs without a grand slam.—Tim Kurkjian
2
a usually Grand Slam
(1)
: the winning of all four of the most significant championships in a particular sport in the same year
—used especially in tennis and golf
… with … Nadal spoiling Federer's bid for the Grand Slam by beating him on the clay at the French Open.—Sean Gregory
"And so to St. Andrews to begin the quest for the Grand Slam," he [Bobby Jones] wrote.—Dave Anderson
also : the winning of all four such championships during the course of one's career
Woods … could become the youngest player to win the career Grand Slam, at age 24. —Clifton Brown
(2)
: one of the championships that comprise a Grand Slam : major entry 2 sense 6
"Last year she was a little hungrier," says Davenport's coach, Robert Van't Hof. "She hadn't won a Grand Slam yet."—Diane K. Shah
—often used before another noun
a Grand Slam event/tournament
Graf was 17 when she won the first of her 21 Grand Slam titles here in 1987 …—Robin Finn
b
: a clean sweep or total success
3
: the winning of all the tricks in one hand of a card game (such as bridge)
Once, looking over Grace's shoulder, I saw her make a grand slam in clubs when the highest trump card in her hand was the nine.—William Maxwell

Examples of grand slam in a Sentence

He made a grand slam.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Trailing 2-1, Atlanta loaded the bases against AJ Blubaugh (5-3) and Acuña homered off Bryan Abreu for his second grand slam this season and the fifth of his big league career. — ABC News, 19 Sep. 2026 Earlier this month, Rocchio followed up a tying grand slam with a walk-off homer to the bleacher seats. — Zack Meisel, New York Times, 16 Sep. 2026 Tennis great Roger Federer announces his retirement from pro tennis at 41 with 20 grand slam wins and 103 ATP titles. — Assistant Sports Editor, Los Angeles Times, 15 Sep. 2026 Zverev’s triumph further extends the grand slam drought for American men at least another year. — Jacob Lev, CNN Money, 13 Sep. 2026 See All Example Sentences for grand slam

Word History

First Known Use

1800, in the meaning defined at sense 3

Time Traveler
The first known use of grand slam was in 1800

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Cite this Entry

“Grand slam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grand%20slam. Accessed 25 Sep. 2026.

Kids Definition

grand slam

noun
: a home run hit with three runners on base
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