/ Dictionary / Index W well-known: Meaning and Definition of Find definitions for: well-known Pronunciation: (wel'nōn'), [key] — adj. clearly or fully known: The well-known reasons are obvious. generally or widely known: a well-known painting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: well-known (Thesaurus) well-knit well log Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language