COAUTHOR Meaning of COAUTHOR in English coauthor BrE AmE ˌkəʊ ˈɔːθ ə ˈ•ˌ•• AmE ˌkoʊ ˈɔːθ ə r -ˈɑːθ- ▷ coauthor|ed d▷ coauthoring ˌkəʊ ˈɔːθ ə r ɪŋ AmE ˌkoʊ- -ˈɑːθ- ▷ coauthor|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012