Jōyō kanji, Taught in junior high
JLPT level: N1
1239 of 2500 most used kanji in newspapers
Stroke count: 9
Meaning: orphan, alone
Kunyomi:
Onyomi: コ
Composition: 子 瓜
Radical: 子
Meaning: child, seed
孤 （コ） being alone, solitude, loneliness, orphan
孤児 （コジ） orphan, person without friends
遺孤 （イコ） orphan