Search gender: all male female Kashu Girl Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: kashu Katakana: カシュウ 0 Kanji: 歌柊 Meaning: 歌Singing. Sing along with the music. Sing with verse and beat. Compose waka, haiku, poems, etc. 柊Holly (a kind of tree). Small evergreen tree of the Moraceae family. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Kashu Girl Name Meaning, Kanji Variations.