/ Dictionary / Index P pillbox: Meaning and Definition of Find definitions for: pill•box Pronunciation: (pil'boks"), [key] — n. a box, usually shallow and often round, for holding pills. a small, low structure of reinforced concrete, enclosing machine guns, and employed as a minor fortress in warfare. a small, round, brimless hat with straight sides and a flat top, worn esp. by women. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pillbox (Thesaurus) Pillars of Islam pill bug Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language