/ Dictionary / Index O off-base: Meaning and Definition of Find definitions for: off-base Pronunciation: (ôf'bās', of'-), [key] — adj. located outside the perimeters of a military base: off-base housing for officers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: off-base (Thesaurus) Offaly offbeat Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language