Pronunciation: [kˌə͡ʊɪfˈɪʃənsi] (IPA)
Correct spelling for the English word "Coefficiency" is [kˌə͡ʊɪfˈɪʃənsi], [kˌəʊɪfˈɪʃənsi], [k_ˌəʊ_ɪ_f_ˈɪ_ʃ_ə_n_s_i] (IPA phonetic alphabet).
Correct spelling for Coefficiency