also: いとこ
older male cousin
Specifically refers to a male cousin who is older than the speaker. Compare 従弟 (younger male cousin), 従姉 (older female cousin), and 従妹 (younger female cousin).
See also: 従弟
私の従兄は東京で働いています。
My older male cousin works in Tokyo.
従兄が結婚することになった。
My older male cousin is getting married.
Kana spelling is common in everyday writing, especially when the specific cousin relationship is clear from context or not important.