Search gender: all male female 錬 Japanese Boy Names Variations. 61 names found. gender: all male female Name: renji Katakana: レンジ 0 Kanji: 錬司 Meaning: 錬Alchemy 司I'll take care of it. Government office. Officials. To take on a role. To manage. To take charge of. To watch. You can save your favorite names with prev1234 NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 錬 Japanese Boy Names Variations.