Detection rhymes with:
overprotection, protection, advection, affection, circumspection, collection, complexion, confection, connection, convection, correction, defection, direction, disaffection, disconnection, disinfection, dissection, ejection, election, erection, flexion, imperfection, infection, inflection, injection, inspection, insurrection, interconnection, interjection, intersection, introspection, objection, overprotection, perfection, predilection, preelection, projection, protection, recollection, redirection, reelection, reflection, reinspection, rejection, resurrection, section, selection
Detection sounds like:
d'agostino, dagestan, dagostino, dakotan, daughton, dedication, deduction, degaetano, deighton, desiccation, destin, destiny, destitution, detoxication, dichotomy, dickstein, dictation, diction, dictum, dideoxycytidine, digaetano, digestion, digidyne, disdain, dissection, dissociation, doughten, dukedom, dustin, dustman, duston