Pronunciation: [d͡ʒˌiːsˌiːˈɛsˌɛfˈiː] (IPA)
Correct spelling for the English word "GCSFE" is [d͡ʒˌiːsˌiːˈɛsˌɛfˈiː], [dʒˌiːsˌiːˈɛsˌɛfˈiː], [dʒ_ˌiː_s_ˌiː__ˈɛ_s_ˌɛ_f_ˈiː] (IPA phonetic alphabet).
Correct spelling for GCSFE