American English

Definition of belles-lettres noun from the Oxford Advanced American Dictionary

 

belles-lettres

 noun
noun
NAmE//ˌbɛl ˈlɛtrə//
 
[plural, uncountable] (from French) (old-fashioned)
 
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studies or writings on the subject of literature or art, contrasted with those on technical or scientific subjects
See the Oxford Advanced Learner's Dictionary entry: belles-lettres