Search gender: all male female Nui Boy Name Meaning, Kanji Variations. 2 names found. gender: all male female Name: nui Katakana: ヌイ 0 Kanji: 縫 Meaning: 縫Sew Name: nui Katakana: ヌイ 0 Kanji: 縫一 Meaning: 縫Sew 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 > Nui Boy Name Meaning, Kanji Variations.