Added 9 October 2026 apsu noun Categories: PeopleObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about apsu at Wordnik → Where our words come from → Father of the gods and consort of Tiamat. Related Words: abzuashipuutukkuapkalluupsaraapsarasantuapsyrtusarethusaarethuseundineanzu Back to today's word