/ Dictionary / Index A arquebus: Meaning and Definition of Find definitions for: ar•que•bus Pronunciation: (är'kwu-bus), [key] — pl. -bus•es. harquebus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arquebus (Thesaurus) Arpino arquebusier Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language