common knowledge
- noun
- /ˈkɑːmən ˈnɑːlɪdʒ/
- It is common knowledge that the Earth revolves around the Sun.
- a matter of common knowledge
- become common knowledge
- now common knowledge
I was so incredibly embarrassed because I didn't know what the common knowledge was in Canada.
- I was so incredibly embarrassed because I didn't know what the common knowledge was in Canada.
- That Marxism and religion are old enemies is pretty common knowledge.
- Yeah, he would know some of the people that were pretty much common knowledge in their surroundings, but it was just too much.
- So there was, there was a lot of sharing going on and there was a lot of assumed common knowledge.
- Yet it's fair to say that the underlying concepts and the practical realities of gene editing aren't common knowledge.
- So he knows it's common knowledge that these women have settled all these all these lawsuits with Bill Clinton.
- But nothing was ever said, you know, everyone knew it was common knowledge and an open book that one or two of the teachers were sexual predators towards the boys.
- This car, I can tell you because it's common knowledge.
- So in the case in the physical space, the, the common knowledge is in the physics of the atoms.
- What if this is like common knowledge and I'm just like, OK, no, not the watery bowels.
- I feel like it's not maybe super common knowledge that like preterm labour is, it's not nothing.
- It's a common knowledge, the way I've lived my life, fighting all infighting, no old barred.
Examples
-
For one thing, it's common knowledge that southern Indiana doesn't have that many frogs.
Fiction book (1995) -
There are six plain sources of evidence that can be easily understood from common knowledge by the typical student.
Academic text (2010) -
Well, I thought that was common knowledge.
-
That was pretty common knowledge.
-
Everything in them was common knowledge, public property for more than a century.
Fiction book (2001) -
So like, it's common knowledge that America lost the Korean War, right?
-
Some of these foods, however, remain outside the common knowledge of both food safety professionals and consumers.
Academic text (2006) -
It was common knowledge that my father was out in that storm.
-
Salmon joins together people's individual lives through common knowledge and experience.
Academic text (2001) -
Unlike some aspects of the initiation, this one was common knowledge and not surrounded by taboos.
Fiction book (1990)
Synonyms
Facts that anyone can find out
Facts many people know about different subjects
Antonyms
How Known
Surface Forms
Morphology
The meaning 'information that is generally known' is directly and compositionally derived from 'common' (shared/by many) + 'knowledge' (information), following a straightforward adjective + noun semantics. This is a literal, non-idiomatic collocation with clear cross-linguistic equivalents, so a B1 learner who knows the constituent words will readily understand it.
Etymology
Common knowledge comes from the idea of the 'common' — a shared place where villagers met and heard the same news, with common meaning shared and knowledge meaning what people knew. If something was on the common, everyone knew it, so common knowledge means 'information everyone knows' today.