Pronunciation: [ˈɛnsjˈuːb] (IPA)
Correct spelling for the English word "NCEUB" is [ˈɛnsjˈuːb], [ˈɛnsjˈuːb], [ˈɛ_n_s_j_ˈuː_b] (IPA phonetic alphabet).
Correct spelling for NCEUB