say it: nohn
known is an adjective meaning "apprehended with certainty". It carries one recorded sense.
apprehended with certainty
“a known quantity”
“the limits of the known world”
“a musician known throughout the world”
“a known criminal”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for known come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.