/ Dictionary / Index A Apsu: Meaning and Definition of Find definitions for: Ap•su Pronunciation: (äp's), [key] — n. an Akkadian god: the consort of Tiamat and the father of the gods. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: apsu (Thesaurus) Ap star Apsyrtus Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language