Designations rhymes with:
resignations, assassinations, carnations, combinations, condemnations, denomination's, denominations, destinations, determination's, determinations, detonations, donations, eliminations, emanations, examinations, explanations, hallucinations, imaginations, incarnations, inclinations, intonations, machinations, nation's, nations, nations', nominations, originations, recriminations, resignations, ruminations, terminations, vaccinations
Designations sounds like:
decanting, decimating, descending, designating, discontinuance, discontinuing, discounting, disseminating, dissenting, documenting