/ Dictionary / Index J James Bay: Meaning and Definition of Find definitions for: James' Bay' Pronunciation: [key] the S arm of Hudson Bay, in E Canada between Ontario and Quebec provinces. 300 mi. (483 km) long; 160 mi. (258 km) wide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. James VI James Edward Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language