Search gender: all male female Gai Girl Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: gai Katakana: ガイ 3 Kanji: 凱依 Meaning: 凱Triumph. A voice given when one wins a battle or competition. 依To rely on. To lean on. To use as a basis. To follow. As is. As it was. As it was before. Unclear. Hazy. To take care of the weak. Help. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Gai Girl Name Meaning, Kanji Variations.