Pronunciation: [ɪlˈuːmɪn] (IPA)
Correct spelling for the English word "illumin" is [ɪlˈuːmɪn], [ɪlˈuːmɪn], [ɪ_l_ˈuː_m_ɪ_n] (IPA phonetic alphabet).
Correct spelling for illumin