Augustinians rhymes with:
palestinians', palestinian's, palestinians, palestinians', argentinians, palestinian's, palestinians, palestinians', argentinians, carolinians, finian's, palestinian's, palestinians, palestinians'
Augustinians sounds like:
academic, academics, academies, academy's, acceding, accosting, accusations, acquisition's, acquisitions, acquitting, acting, actinomycosis, action's, actions, acuteness, agitating, ashton's, assistance, assisting, associating, association's, associations, astonish, astuteness, auction's, auctioning, auctions, augustyniak, austen's, austin's