[1] : The Collaborative International Dictionary of English v.0.48

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

[2] : WordNet (r) 2.0

well-known
     adj 1: widely or fully known; "a well-known politician";
            "well-known facts"; "a politician who is well known";
            "these facts are well known"
     2: frequently experienced; known closely or intimately; "a
        long-familiar face"; "a well-known voice reached her ears"
        syn: long-familiar, well-knowna
see also:
long-familiar well-knowna 

[3] : Moby Thesaurus II by Grady Ward, 1.0

69 moby thesaurus words for "well-known":
   acclaimed, back-number, banal, bewhiskered, bromidic, celebrated,
   common, commonly known, commonplace, conspicuous, corny, current,
   cut-and-dried, distinguished, fabled, fade, famed, familiar,
   famous, far-famed, far-heard, fusty, hackney, hackneyed, honored,
   household, important, leading, legendary, marked, moth-eaten,
   much acclaimed, musty, mythical, notable, noted, notorious,
   of mark, of note, old hat, outstanding, platitudinous, popular,
   prominent, proverbial, public, renowned, set, square, stale,
   stereotyped, stock, talked-about, talked-of, threadbare, timeworn,
   trite, truistic, universally admitted, universally recognized,
   unoriginal, warmed-over, well-kenned, well-recognized,
   well-understood, well-worn, widely known, worn, worn thin

Well-Known >> W Words
Well-Known, definition of term: Well-Known
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