American English

Definition of Pollyanna noun from the Oxford Advanced American Dictionary

 

Pollyanna

 noun
noun
NAmE//ˌpɑliˈænə//
 
[usually singular]
 
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a person who is always cheerful and expects only good things to happen From the name of a character in a children's story by Eleanor Hodgman Porter.
See the Oxford Advanced Learner's Dictionary entry: Pollyanna