Search gender: all male female Tomonaru Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tomonaru Katakana: トモナル 0 Kanji: 智成 Meaning: 智Smart. Wisdom. To understand things. 成To finish. Grow. To raise up. Accomplish. To be fruitful. to change into Good. splendid. large. well-organized. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tomonaru Name Meaning, Kanji Variations.