/ Dictionary / Index L Lackland Air Force Base: Meaning and Definition of Find definitions for: Lack'land Air' Force" Base" Pronunciation: (lak'lund), [key] U.S. Air Force installation in SW central Texas, SW of San Antonio. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lacking lackluster 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