Translations dictionary
Q.E.D.
or QED or qed or C.Q.F.D. [kyoo-ee-dee]
What does聽蚕.贰.顿.听mean?
Q.E.D. is an acronym for the Latin phrase聽quod erat demonstrandum, a fancy way to show off you just logically proved something.
Where does Q.E.D. come from?
Examples of Q.E.D.
Who uses Q.E.D.?
Saying Q.E.D. has quite a scholarly ring to it,聽not least because of its association with Latin, math, and erudition more generally.
When writing or speaking, you can use Q.E.D. to signal to your audience that you’ve logically proved your point step-by-step. For example: Dictionary.com is the best online dictionary. They hire the smartest researchers and writers. Q.E.D.
JFC, I just realized Kavanaugh's bizarre calendar schtick wasn't just the world's lamest alibi. It was STRICT CONSTRUCTIONISM. That is how people like him ACTUALLY THINK. "Well, I didn't write it down, QED it didn't happen." Our reigning legal philosophy at work.
— Jeff Bercovici (@jeffbercovici)
People will ironically use Q.E.D. at the end of a statement as if they’ve made an argument … though it’s just their opinion.
There is not more question. Maybe there was before, but not any more. I'm done hearing it. Christian Yelich is the NL MVP. Period. End of discussion. QED.
— Keith Haar (@Keith_Stoned)
Other languages have their own versions, such as the French C.Q.F.D. (ce qu’il fallait d茅montrer).
Q.E.D. can also stand for quantum electrodynamics, a field of physics whose math would make even those ancient Greek geometers cower.
Note
This is not meant to be a formal definition of Q.E.D. like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of Q.E.D. that will help our users expand their word mastery.