Search gender: all male female Itsuzen Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: itsuzen Katakana: イツゼン 0 Kanji: 一全 Meaning: 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. 全All. Totally. All of it. Totally. Without missing. Having everything in place. To be able to do perfectly. To accomplish successfully. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Itsuzen Name Meaning, Kanji Variations.