Definition of sty noun from the Oxford Advanced American Dictionary

     

    sty

     noun
    noun
    NAmE//staɪ//
     
     
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  1. 1(pl. sties) = pigpen
  2. 2(also stye) (sties or styes) an infection of the eyelid (= the skin above or below the eye) that makes it red and sore
See the Oxford Advanced Learner's Dictionary entry: sty