Home › Words › O › overscoreoverscoreoverscore · noun — synonym of overbar.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom over- + score.nounSynonym of overbar.verbSynonym of overbar.To draw a line through; to cross out.To score (a piece of music) for too many instruments.Definitions & examples from Wiktionary (CC BY-SA 3.0).