noun
Refers to a child of one's parent's first cousin. The kana form ふたいとこ is the normal modern spelling; kanji forms are rare and specify gender combinations.
See also: 又従兄弟 (またいとこ)
彼は私のふたいとこです。
He is my second cousin.
ふたいとこ同士で結婚できる国もある。
In some countries, second cousins can marry each other.
Compound of 二 (ふた, 'two') and いとこ ('cousin'), literally 'two-step cousin'. The kanji spellings use 従 (じゅう) meaning 'cousin' combined with gender-specific characters.