Pronunciation: [ˌɛfˌɛfˈɛfˌɛksˈɛf] (IPA)
Correct spelling for the English word "fffxf" is [ˌɛfˌɛfˈɛfˌɛksˈɛf], [ˌɛfˌɛfˈɛfˌɛksˈɛf], [ˌɛ_f_ˌɛ_f_ˈɛ_f_ˌɛ_k_s_ˈɛ_f] (IPA phonetic alphabet).