(1):
(a.) Of or pertaining to St. Augustine, bishop of Hippo in Northern Africa (b. 354 - d. 430), or to his doctrines.
(2):
(n.) A member of one of the religious orders called after St. Augustine; an Austin friar.
(3):
(n.) One of a class of divines, who, following St. Augustine, maintain that grace by its nature is effectual absolutely and creatively, not relatively and conditionally.