Synonyms for Angelfish (same or very similar meaning)
WordNet sense 1 (deep-bodied disk-shaped food fish of warmer western Atlantic coastal waters):
spadefish, Chaetodipterus faberWordNet sense 2 (sharks with broad flat bodies and winglike pectoral fins but that swim the way sharks do):
monkfish, angel shark, Squatina squatinaFrom the ODE community, based on WordNetadd/edit