Acquaintance rhymes with:
quaintance, quaintance, quaintance, quaintance, repentance, sentence, acceptance, admittance, assistance, capacitance, coexistence, consistence, constance, distance, existence, importance, impotence, inadvertence, incompetence, inductance, inheritance, insistence, instance, omnipotence, outdistance, persistence, pittance, quaintance, reluctance, remittance, repentance, resistance, resistence, self-subsistence, sentence, subsistence, substance
Acquaintance sounds like:
accenting, accentuating, accommodating, accommodations, accountancy, accounting, acquaintances, ascendance, ascendancy, ascendency, ascending, assassinating, assassinations, augmenting