Deficiencies rhymes with:
efficiencies, inefficiencies, efficiencies, inefficiencies, efficiencies, inefficiencies, efficiencies, inefficiencies, agencies, agencies', agency's, conservancy's, constituencies, contingencies, counterinsurgencies, currencies, currency's, delinquencies, dependencies, discrepancies, efficiencies, emergencies, exigencies, expectancies, frequencies, inefficiencies, insolvencies, insurgencies, malignancies, pregnancies, presidencies, presidency's, redundancies, regency's, tendencies, transparencies, vacancies
Deficiencies sounds like:
debasing, debugging, defacing, defeasance, deficiency, defusing, devising, diffusing, division's, divisions, divisions', dobkins, dobson's, dobsons