原げん被ぴMeanings1nounplaintiff and defendantLegal term referring to both parties in a lawsuit; used in contexts such as 原被双方 (both plaintiff and defendant).裁さい判ばんでは原げん被ぴ双そう方ほうの主しゅ張ちょうを聞きく。In a trial, the arguments of both the plaintiff and the defendant are heard.