Imitation rhymes with:
accreditation, agitation, amputation, annotation, cohabitation, commutation, computation, connotation, dilatation, equitation, facilitation, habitation, hesitation, imputation, inhabitation, meditation, misinterpretation, palpitation, premeditation, prestidigitation, recitation, rehabilitation, reinterpretation, reputation, sanitation, vegetation, visitation
Imitation sounds like:
ianthina, indian, indiana, indianian, indium, initiation, intan, intone, intuition, inundation