/ Dictionary / Index B blue jay: Meaning and Definition of Find definitions for: blue' jay" Pronunciation: [key] a common, crested jay, Cyanocitta cristata, of eastern North America, having a bright blue back and a gray breast. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blue jasmine blue jeans Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language