Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “QED”

See all translations

QED

uk   /ˌkjuː.iːˈdiː/ us  
abbreviation for the Latin phrase "quod erat demonstrandum": written or said after an argument to show that you have proved something that you wanted to prove
Translations of “QED”
in Chinese (Traditional) 證畢,證訖 ,以上得證…
in Chinese (Simplified) 证毕,证讫…
(Definition of QED from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of QED?
Add Cambridge dictionaries to your browser to your website

Word of the Day

hyphen

the symbol -, used to join two words together, or to show that a word has been divided into two parts at the end of one line and the beginning of the next

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

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