/ Dictionary / Index J jay: Meaning and Definition of Find definitions for: jay Pronunciation: ( jā), [key] — n. any of several noisy, vivacious birds of the crow family, subfamily Garrulinae, as the crested Garrulus glandarius, of the Old World, having brownish plumage with blue, black, and white barring on the wings. Cf. blue jay, gray jay. a simpleminded or gullible person. jay Pronunciation: ( jā), [key] — n. Slang. a marijuana cigarette. Jay Pronunciation: ( jā), [key] — n. 1745–1829, U.S. statesman and jurist: first Chief Justice of the U.S. 1789–95. a male given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: jay (Thesaurus) Jaxartes Jayapura Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language