Dictionary/外洋がいようGaiyou外洋 (Gaiyou) is a Japanese noun meaning “open sea, ocean”.Meaningsnounopen sea; oceanKanji in 外洋外outside洋oceanRelated words外outside他another place余所another place外outside ...他にelse以外excluding意外unexpected外すto remove法外exorbitant海外foreign外れるto be disconnected外科surgery (branch of medicine)