a‧byss  /əˈbɪs/ Pronunciation Key - Show Spelled Pronunciation[uh-bis] Pronunciation Key - Show IPA Pronunciation

–noun 1. a deep, immeasurable space, gulf, or cavity; vast chasm.
2. anything profound, unfathomable, or infinite: the abyss of time.
3. (in ancient cosmogony) a. the primal chaos before Creation.
b. the infernal regions; hell.
c. a subterranean ocean.