/ Dictionary / Index B blue note: Meaning and Definition of Find definitions for: blue' note" Pronunciation: [key] — Jazz. Jazz. a flatted note, esp. the third or the seventh degree of the scale, recurring frequently in blues and jazz as a characteristic feature. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bluenose blue onyx Related Content Daily Word Quiz: imprudent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language