Ensures rhymes with:
insures, assures, brochures, insures, reassures, sures, amanpour's, assures, beladur's, boors, brochures, cures, detours, endures, insures, koors, luehrs, luhrs, lures, matures, moore's, moores, moors, obscures, poor's, poors, reassures, secures, spoor's, sures, tour's, tours, yours
Ensures sounds like:
emigres, emissaries, encor's, encores, encourage, encourages, encroach, encroaches, engross, enserch, ensource