おじ
おじ
noun
uncle
1.
uncle
One's parent's brother, or the husband of one's parent's sibling.
When written in kanji, there are two forms: 伯父 for an uncle older than your parent, and 叔父 for an uncle younger than your parent. In casual writing, おじ is often written in hiragana. When referring to someone else's uncle politely, use おじさん.
Note: おじさん can also be used generally for middle-aged men.