- If something is common knowledge then it is widely or generally known.
- Knowledge that is available to everyone.
- When information is well-known to everyone.
1. It is common knowledge that smoking can cause cancer and other diseases.
2. Your relationship with Vince has become common knowledge around the office.
3. Everything you do or say becomes common knowledge when you live in a small community.
4. The divorce isn’t common knowledge yet, so don’t mention anything to my family please?
circulating, fad, general, in, in circulation, in the mainstream, in the news, instant, mod, modern, no secret, now, ongoing, present, prevailing, public knowledge, ruling, widespread