/ Dictionary / Index H holster: Meaning and Definition of Find definitions for: hol•ster Pronunciation: (hōl'stur), [key] — n. a sheathlike carrying case for a firearm, attached to a belt, shoulder sling, or saddle. —v.t. to put or put back in a holster: to holster a gun. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: holster (Thesaurus) Holstein holt Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language