ALONGSIDE Meaning of ALONGSIDE in English alongside BrE AmE ə ˌlɒŋ ˈsaɪd ◂ •ˈ•• AmE \ ə ˈlɔːŋ saɪd -ˈlɑːŋ-, •ˌ•ˈ• Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012