Pronunciation: [ˈə͡ʊe͡ɪəɹˌə͡ʊ] (IPA)
Correct spelling for the English word "OWAIEO" is [ˈə͡ʊe͡ɪəɹˌə͡ʊ], [ˈəʊeɪəɹˌəʊ], [ˈəʊ_eɪ_ə_ɹ_ˌəʊ] (IPA phonetic alphabet).
Correct spelling for OWAIEO