A a ᵄ : Modifier letters are used in the Uralic Phonetic Alphabet (UPA) (sometimes encoded with Unicode subscripts and superscripts)
ɐ ɐ lˌɛɾɚwˈʌndˈiːfˈoːɹfˈoːɹ : mˈɑːdɪfˌaɪɚ lˈɛɾɚz ɑːɹ jˈuːzd ɪnðə jʊɹɹˈælɪk fənˈɛɾɪk ˈælfəbˌɛt jˌuːpˌiːˈeɪ sˈʌmtaɪmz ɛŋkˈoʊdᵻd wɪð jˈuːnɪkˌoʊd sˈʌbskɹɪpts ænd sˈuːpɚskɹˌɪpts