OVERARCH Meaning of OVERARCH in English overarch BrE AmE ˌəʊv ə r ˈɑːtʃ AmE \ ˌoʊv ə r ˈɑːrtʃ▷ overarch|ed t▷ overarch|es ɪz əz ▷ overarch|ing ɪŋ Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012