Agoi, or Ibami, is an Upper Cross River language of Nigeria. IPA Vowels: Short Vowels: ten short oral vowels /i ɪ e ɛ ə a ɔ o ʊ u/ Long Vowels: seven long vowels /iː eː ɛː aː ɔː oː uː/ Reference: Yul-Ifode, Shirley. 2003. Vowel harmony and vowel merger in Agoi. Studies in African linguistics 32. 1-16. References Languages of Nigeria Upper Cross River languages