Search gender: all male female 陰 Japanese Boy Names Variations. 1 names found. gender: all male female Name: shoin Katakana: ショウイン 0 Kanji: 松陰 Meaning: 松Pine tree (a kind of tree). A coniferous tree of the pine family. One of the family crests. The highest grade. 陰Shadow You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 陰 Japanese Boy Names Variations.