長ちょう男なん

noun

eldest son; first-born son

Refers to the oldest son in a family. May be used even when he is the only son.

• 彼かれは長ちょう男なんとして家いえを継つぐことになった。

  As the eldest son, he was to succeed the family.

• 長ちょう男なんは来らい年ねん大だい学がくを卒そつ