Search gender: all male female ギア Japanese Names Variations. 1 names found. gender: all male female Name: gia Katakana: ギア 0 Kanji: 樹亜 Meaning: 樹Trees. General term for plants. To plant a tree. To set up. To stand firmly. 亜Next. Near. Similar. Companions. Branching point. Abbreviation for Asia (Asia). You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ギア Japanese Names Variations.