THIRTEENTH Meaning of THIRTEENTH in English thirteenth BrE AmE ˌθɜː ˈtiːn t θ ◂ § ˌθɜːt- AmE ˌθɝː- ˌθɝːt- ▷ thirteenth|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012