trilingual
Word family adjectivetrilingualnountrilingualism
tri·lin·gual /ˌtraɪˈlɪŋɡwəl◂/ adjectiveadj 2 using three languages 用三种语言的 a trilingual medieval inscription 用三种语言写的一篇中世纪铭文
trilingual• Varro seems to have stated that in his time Massalia was trilingual, the two foreign languages being of course Latin and Celtic.