従弟
い
と
こ
Meanings
1
younger male cousin
Specifically a male cousin who is younger than the speaker. The reading いとこ is a jukujikun; the on'yomi reading じゅうてい is rare and mostly found in formal or written contexts.
See also: 従兄
My younger male cousin is a university student.
My younger male cousin came to visit during summer vacation.