Pronunciation: [ˈɛnnˈɒsi͡ə] (IPA)
Correct spelling for the English word "NNOSIR" is [ˈɛnnˈɒsi͡ə], [ˈɛnnˈɒsiə], [ˈɛ_n_n_ˈɒ_s_iə] (IPA phonetic alphabet).
Correct spelling for NNOSIR