acute accent adebayo faleti afolabi olabimtan akinwunmi isola allophone alveolar consonant approximant consonant arabic language atlantic-congo languages back vowel benin benin empire brazil calque caron church mission society close-mid vowel close vowel cuba diacritic dialect continuum edekiri languages ekiti state elision freetown fricative consonant front vowel ghana glottal consonant glottochronology grave accent hausa hausa language ikare international phonetic alphabet isolating language kwara state labial-velar consonant labial consonant lagos state language family latin alphabet list of language regulators list of languages by number of native speakers macron nasal consonant nasal vowel niger-congo languages niger river nigeria nobel prize in literature oduduwa ogun state ondo state open-mid vowel open vowel palatal approximant palatal consonant phoneme possessive postalveolar consonant rhotic consonant samuel ajayi crowther serial verb construction sierra leone standard yoruba stop consonant subject verb object syllable nucleus tilde togo tonal language underline underspecification unicode velar consonant voiced palatal plosive volta-niger languages wande abimbola wikipedia wole soyinka yoruba literature yoruba people yoruboid languages