蒙もう古こ人じんもうこじんMeanings1nounMongol; Mongolian personRefers to a person of Mongolian ethnicity or nationality. The term is straightforward and neutral.彼かれは蒙もう古こ人じんで、モンゴルの伝でん統とう文ぶん化かに詳くわしい。He is Mongolian and knowledgeable about Mongolian traditional culture.