EXPEDITIONARY Meaning of EXPEDITIONARY in English expeditionary BrE AmE ˌeks pə ˈdɪʃ ə n ə r‿i ◂ ˌ•pɪ-, - ə n‿ ə r i AmE \ -ə ner i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012