Pronunciation: [sˌiːˌɛksvˈiː] (IPA)
Correct spelling for the English word "cxv" is [sˌiːˌɛksvˈiː], [sˌiːˌɛksvˈiː], [s_ˌiː__ˌɛ_k_s_v_ˈiː] (IPA phonetic alphabet).
Correct spelling for cxv