gon·fa·lon \ˈgänfəˌlän, -_lən\noun (-s) Etymology: Italian gonfalone, from Old Italian, from Old French gonfanon, gonfalon — more at gonfanon 1.: the ensign or standard in use by certain princes or states (as the medieval republics of Italy) 2.: a flag that hangs from a crosspiece or frame < the state flower was used by the candidate on his guidons and gonfalons >