/ Dictionary / Index J junco: Meaning and Definition of Find definitions for: jun•co Pronunciation: ( jung'kō), [key] — pl. -cos. any of several small North American finches of the genus Junco. Also calledCf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: junco (Thesaurus) juncaceous junction Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language