Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “night and day”

night and day

(also day and night)
all the time : They've worked night and day to publicize their campaign .Continually and repeatedly
(Definition of night and day from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Definitions of “night and day” in other dictionaries

Translations of “night and day”

Word of the Day

familiarity

a good knowledge of something, or the fact that you know it so well

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More