Definition of trilingual adjective from the Oxford Advanced American Dictionary

     

    trilingual

     adjective
    adjective
    NAmE//ˌtraɪˈlɪŋɡwəl//
     
     
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  1. 1 able to speak three languages equally well He is trilingual in English, Spanish, and French.
  2. 2using three languages; written in three languages trilingual education a trilingual menu
See the Oxford Advanced Learner's Dictionary entry: trilingual