A language may represent the same phoneme with two or more different letters or combinations of letters.
ɐ lˈæŋɡwɪdʒ mˈeɪ ɹˌɛpɹᵻzˈɛnt ðə sˈeɪm fˈoʊniːm wɪð tˈuː ɔːɹ mˈoːɹ dˈɪfɹənt lˈɛɾɚz ɔːɹ kˌɑːmbᵻnˈeɪʃənz ʌv lˈɛɾɚz.