Computation rhymes with:
amputation, imputation, amputation, imputation, reputation, amputation, commutation, imputation, reputation, accreditation, agitation, amputation, annotation, cohabitation, commutation, connotation, dilatation, equitation, facilitation, habitation, hesitation, imitation, imputation, inhabitation, meditation, misinterpretation, palpitation, premeditation, prestidigitation, recitation, rehabilitation, reinterpretation, reputation, sanitation, vegetation, visitation
Computation sounds like:
cambodian, campton, competition, compton, compudyne, conniption, cumpton