Pronunciation: [ˈɛnsˈaːa͡ʊ] (IPA)
Correct spelling for the English word "NSAAAO" is [ˈɛnsˈaːa͡ʊ], [ˈɛnsˈaːaʊ], [ˈɛ_n_s_ˈaː_aʊ] (IPA phonetic alphabet).