known
- 01 A2 Elementary
adj.familiar to people or easy to recognize.
adj.familiar, recognized, or established through experience or observation.
Simple“It is a known fact that smoking is bad for your health.”
In context“The patient had no known allergies to the medication, so the doctor proceeded with the standard prescription.”
SynonymsAntonyms - 02 B1 Intermediate
adj.famous or well-regarded for a specific reason.
adj.widely recognized or famous, often followed by 'as' or 'for'.
Simple“The city is known for its beautiful parks and old buildings.”
In context“The author is primarily known for her historical novels, though she has recently experimented with science fiction.”
- 03 C1 Advanced
n.something that is already certain or a value that is already calculated.
n.a fact or variable whose value or nature is already determined or established.
Simple“In this equation, the speed of the car is a known.”
In context“When solving for the trajectory, we must first isolate the knowns from the variables to simplify the calculation.”
Usage known to support · known evidence · known for years
From Middle English knowen, from Old English cnāwen (past participle). Morphologically know + -n.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.