/ Dictionary / Index D drill tower: Meaning and Definition of Find definitions for: drill' tow"er Pronunciation: [key] a structure, usually of concrete and steel, that resembles a building and is used by firefighters for practicing and improving firefighting techniques. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. drill team drily Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language