The spelling of the word "WISPHF" can be explained using the International Phonetic Alphabet (IPA). The first letter, "W" represents the sound /w/. The second letter, "I" represents the sound /ɪ/. The third letter, "S" represents the sound /s/. The fourth letter, "P" represents the sound /p/. The fifth letter, "H" represents the sound /h/. The last letter, "F" represents the sound /f/. In summary, "WISPHF" is spelled using a combination of the sounds /w/, /ɪ/, /s/, /p/, /h/, and /f/.