From Longman Dictionary of Contemporary Englishsunfishsun‧fish /ˈsʌnfɪʃ/ noun (plural sunfish) [countable] HBFa fish that lives in the sea and has a large round body
Examples from the Corpus
sunfish• For a sunfish or a supermarket, the best game to play depends on what everybody else is up to.• The bluegill sunfish has a society based on lies.• The reason is simple: as in sunfish, the rarer caste is always better off.• Schools of sunfish still loiter there, and Stuart hooks one of their members and stiff-poles it right in.• Starting with sunfish Q I would like to keep Pumpkinseed fish. 