adjective adverb affix alabama alphabet alveolar consonant american english back vowel central vowel cherokee language chickasaw language choctaw language circumflex close-mid vowel close vowel consonant creek mythology diphthong english language florida front vowel genitive case glottal consonant grammatical aspect grammatical mood grammatical tense grammatical voice imperfective aspect inalienable possession infinitive international phonetic alphabet labial consonant language family lateral consonant latin alphabet muskogean languages nasal consonant nasalization noun ogonek oklahoma open vowel orthography perfect aspect phoneme phonology preposition stranding schwa seminole semivowel silent letter skunk spanish in the united states spanish language tribe unicode united states university of nebraska press university of oklahoma press velar consonant vowel wikimedia incubator wikipedia