Semblance rhymes with:
resemblance, resemblance, resemblance, ambivalence, ambulance, balance, ballance, benevolence, condolence, counterbalance, dolence, equivalence, excellence, imbalance, insolence, nonviolence, opulence, palance, parlance, pestilence, petulance, prevalence, resemblance, roylance, silence, somnolence, surveillance, turbulence, unbalance, valence, vallance, vigilance, violence, virulence
Semblance sounds like:
sampling, samplings, sniffling, snowballing