Detonations rhymes with:
destinations, intonations, assassinations, combinations, denomination's, denominations, destinations, emanations, examinations, explanations, hallucinations, imaginations, inclinations, intonations, machinations, nominations, originations, terminations, vaccinations
Detonations sounds like:
daunting, demanding, demotions, denomination's, denominations, denoting, denting, denuding, detentions, detonating, dominating, donating, donations, downtown's, downtowns