Muskogean language mus·ko·gean·language uncommon noun 1. a family of North American Indian languages spoken in the southeastern United States SynonymsMuskhogeanMuskhogean languageMuskogeanMuskogean language Related words Broader terms Amerind Narrower terms AlabamaChickasawChoctawHitchitiKoasatiMuskogeeSeminole WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.