/ Dictionary / Index M Mobile Bay: Meaning and Definition of Find definitions for: Mo'bile Bay' Pronunciation: (mō'bēl), [key] a bay of the Gulf of Mexico, in SW Alabama: Civil War naval battle 1864. 36 mi. (58 km) long; 8–18 mi. (13–29 km) wide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mobile mobile home Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language