/ Dictionary / Index T Tactical Air Command: Meaning and Definition of Find definitions for: Tac'tical Air' Command" Pronunciation: [key] a U.S. Air Force command supplying direct air support to U.S. Army ground combat units. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tactical tactical unit Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language