Dictionary/盟友めいゆうMeiyuu盟友 (Meiyuu) is a Japanese noun meaning “sworn friend”.Meaningsnounsworn friendKanji in 盟友盟alliance友friendRelated words友達friend友人friend親友close friend誓うto swear友friend友情friendship同盟alliance連盟league戦友comrade in arms盟約oath友好friendship学友school friend