Pronunciation: [ɪlˈuːsɪŋ] (IPA)
Correct spelling for the English word "illusing" is [ɪlˈuːsɪŋ], [ɪlˈuːsɪŋ], [ɪ_l_ˈuː_s_ɪ_ŋ] (IPA phonetic alphabet).
Correct spelling for illusing