Pronunciation: [kˈɔ͡ɪə͡ʊn] (IPA)
Correct spelling for the English word "COIONE" is [kˈɔ͡ɪə͡ʊn], [kˈɔɪəʊn], [k_ˈɔɪ_əʊ_n] (IPA phonetic alphabet).