Search gender: all male female Otoichi Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: otoichi Katakana: オトイチ 0 Kanji: 音一 Meaning: 音Sound. Tone. Voice. News. 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Otoichi Name Meaning, Kanji Variations.