'Well-known' definitions:

Definition of 'well-known'

From: WordNet
adjective
Widely or fully known; "a well-known politician"; "well- known facts"; "a politician who is well known"; "these facts are well known"
adjective
Frequently experienced; known closely or intimately; "a long- familiar face"; "a well-known voice reached her ears" [syn: long-familiar, well-known(a)]

Definition of 'Well-known'

From: GCIDE
  • Well-known \Well"-known`\, a. Fully known; generally known or acknowledged. [1913 Webster]
  • A church well known with a well-known rite. --M. Arnold. [1913 Webster]

Synonyms of 'well-known'

From: Moby Thesaurus