Search gender: all male female 棟 Japanese Girl Names Variations. 3 names found. gender: all male female Name: tona Katakana: トウナ 0 Kanji: 棟菜 Meaning: 棟Highest point of the roof 菜Vegetable. A general term for vegetables whose leaves, stems, roots, and other parts are eaten. Side dish. Name: toko Katakana: トウコ 0 Kanji: 棟子 Meaning: 棟Highest point of the roof 子Children Name: ren Katakana: レン 0 Kanji: 棟 Meaning: 棟Highest point of the roof You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 棟 Japanese Girl Names Variations.