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English definition of “be on the ball”

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be on the ball

informal
to be quick to understand and react to thingsPerceptiveUsing the eyesIntelligence
Translations of “be on the ball”
in Chinese (Traditional) 機靈,靈敏…
in Russian быть расторопным…
in Turkish kolay kavrayıp hemen anlamak ve tepki vermek…
in Chinese (Simplified) 机灵,灵敏…
in Polish być czujnym…
(Definition of be on the ball from the Cambridge Learners Dictionary © Cambridge University Press)
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