Search gender: all male female 一花 Japanese Boy Names Variations. 1 names found. gender: all male female Name: ichika Katakana: イチカ 1 Kanji: 一花 Meaning: 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. 花Flowers. Something shaped like a flower. A metaphor for something as beautiful or gorgeous as a flower. Honor. To be excellent. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 一花 Japanese Boy Names Variations.