Surveillance rhymes with:
valence, valence, ambivalence, ambulance, balance, ballance, benevolence, condolence, counterbalance, dolence, equivalence, excellence, imbalance, insolence, nonviolence, opulence, palance, parlance, pestilence, petulance, prevalence, resemblance, roylance, semblance, silence, somnolence, turbulence, unbalance, valence, vallance, vigilance, violence, virulence
Surveillance sounds like:
scribbling, serfling, shriveling, surveilling