/ Dictionary / Index F firebase: Meaning and Definition of Find definitions for: fire•base Pronunciation: (fīr'bās"), [key] — n. Mil. an artillery base, esp. one set up quickly to support advancing troops or to forestall enemy advances. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: firebase (Thesaurus) fire balloon fire beetle 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