Curtailment rhymes with:
ailment, derailment, ailment, annulment, battlement, concealment, derailment, disgruntlement, dismantlement, embezzlement, encirclement, enrollment, entanglement, entitlement, fulfillment, installment, mccalmont, puzzlement, resettlement, settlement
Curtailment sounds like:
cartland, corteland, cortland, courtland