A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide.
ˈeɪ, ɔːɹ ˈeɪ, ɪz ðə fˈɜːst lˈɛɾɚ ænd ðə fˈɜːst vˈaʊəl ʌvðə lˈætɪn ˈælfəbˌɛt, jˈuːzd ɪnðə mˈɑːdɚn ˈɪŋɡlɪʃ ˈælfəbˌɛt, ðɪ ˈælfəbˌɛts ʌv ˈʌðɚ wˈɛstɚn jˌʊɹɹəpˈiən lˈæŋɡwɪdʒᵻz ænd ˈʌðɚz wˈɜːldwaɪd.