Search gender: all male female 臼 Japanese Girl Names Variations. 1 names found. gender: all male female Name: kyuko Katakana: キュウコ 0 Kanji: 臼子 Meaning: 臼Mortar 子Children You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 臼 Japanese Girl Names Variations.