Religion's rhymes with:
religions, pigeon's, pigeons, religions, allergens, antigens, belgians, cajuns, carcinogens, collegians, dungeons, engine's, engines, georgians, hodgens, hudgens, hydrogens, imagines, legions, margins, neurosurgeons, norwegians, pathogens, pigeon's, pigeons, region's, regions, religions, sturgeons, surgeon's, surgeons, theologians, trajan's, trojans, virgin's, virgins
Religion's sounds like:
realigning, realizing, relaxing, releasing, religions, relishing, rollicking