Finally, the letter A is used to denote size, as in a narrow size shoe, or a small cup size in a brassiere.
fˈaɪnəli, ðə lˈɛɾɚɹ ɐ ɪz jˈuːzd tə dᵻnˈoʊt sˈaɪz, æz ɪn ɐ nˈæɹoʊ sˈaɪz ʃˈuː, ɔːɹ ɐ smˈɔːl kˈʌp sˈaɪz ɪn ɐ bɹˌæsiˈɛɹ.