/ Dictionary / Index B B.L.A.: Meaning and Definition of Find definitions for: B.L.A. Pronunciation: [key] Bachelor of Landscape Architecture. Bachelor of Liberal Arts. Black Liberation Army. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bl. blab Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language