Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “be on your best behaviour”

See all translations

be on your best behaviour

to behave extremely well and be very polite on a particular occasion: I'd just met his parents for the first time so I was on my best behaviour.
Translations of “be on your best behaviour”
in Chinese (Traditional) 舉止得體, 以最好的表現示人…
in Chinese (Simplified) 举止得体, 以最好的表现示人…
(Definition of be on your best behaviour from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Word of the Day

ellipsis

a situation in which words are left out of a sentence but the sentence can still be understood

Word of the Day

Euphemisms (Words used to Avoid Offending People)

by Kate Woodford,
March 04, 2015
​​​ We recently looked at the language that we use to describe lies and lying. One area of lying that we considered was ‘being slightly dishonest, or not speaking the complete truth’. One reason for not speaking the complete truth is to avoid saying something that might upset or offend people. Words and

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More