Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “be on the ball”

See all translations

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)
Add Cambridge dictionaries to your browser to your website

Definitions of “be on the ball” in other dictionaries

Word of the Day

guru

a religious leader or teacher in the Hindu or Sikh religion

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More