LONG-LOST Meaning of LONG-LOST in English long-lost BrE AmE ˌlɒŋ ˈlɒst ◂ -ˈlɔːst ◂ AmE \ ˌlɔːŋ ˈlɔːst ◂ ˌlɑːŋ-, -ˈlɑːst ◂ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012