The phrase "wiped face of earth" means to completely eradicate something or someone from existence. In terms of the spelling, the word "wiped" is pronounced as /waɪpt/, with the diphthong "ai" representing the long vowel sound in "bite". "Face" is pronounced as /feɪs/, with the diphthong "ay" representing the same long vowel sound. Finally, "earth" is pronounced as /ɜːθ/, with the symbol "ɜː" representing the "ur" sound as in "turn". Overall, the spelling of this phrase accurately reflects its pronunciation.