aiai Animals in Japanese / Starting with A Translation aiai means "Aye-Aye" in English. It's a katakanization, a loan-word. aiai in katakana is アイアイ. aiai is not usually written with hiragana. aiai does not have kanji. Romaji a i a i Katakana ア イ ア イ Wikipedia: アイアイ Synonyms yubi-zaru 指猿.