次じ男なんじなんCommon word›JLPTN3›Freq.FrequencyTop 10,000Meanings1nounsecond sonRefers to the second-born son in a family. Used in formal and informal contexts, often when discussing family composition or birth order.彼かれは次じ男なんで、兄あにと妹いもうとがいます。He is the second son and has an older brother and a younger sister.