on the ball

phrase

Definition of on the ballnext
1
as in alert
paying close attention usually for the purpose of anticipating approaching danger or opportunity The cops in this town are always on the ball.

Synonyms & Similar Words

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Antonyms & Near Antonyms
2
as in suitable
having the required skills for an acceptable level of performance The new hire is really on the ball.

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of on the ball The 22-year-old, who stands at 6ft 3in, has pace and is comfortable on the ball, but is also has a strong aerial presence. — Paul Taylor, New York Times, 1 Aug. 2026 Catcher Daniel Susac pounced on the ball and delivered a perfect strike to second base. — Justice Delos Santos, Mercury News, 21 July 2026 See All Example Sentences for on the ball
Recent Examples of Synonyms for on the ball
  1. on the alert
  2. on guard
Phrase
  • London noir is a rare subgenre — and an especially difficult one to pull off — but Michele Fiascaris’ debut Rain Catcher is a satisfying, seductively atmospheric addition to the canon that will keep even the most jaded of viewers on the alert.
    — Damon Wise, Deadline, 6 July 2026
Definition of on the alert
Phrase
  • That exemption will be used on guard Eliška Joklová (nee Hamzová), whose third seven-day contract is about to expire.
    — Mike Cook, Twin Cities, 2 Aug. 2026
  • Disinformation and misinformation experts who spent years telling the public to be on guard against deepfakes are now trying to convince the public that the McConnell image is real.
    — David A. Graham, The Atlantic, 15 July 2026
Definition of on guard

Browse Nearby Words

on the alert
on the ball
on the bias
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Cite this Entry

“On the ball.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/on%20the%20ball. Accessed 6 Aug. 2026.

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