The spelling of the word "Tarpum" can be explained using the International Phonetic Alphabet (IPA). The first sound is a "t" sound, followed by an "ɑr" sound produced by the vowel "a" combined with the "r" consonant. The next sound is a "p" sound, followed by a "ʌ" sound produced by the vowel "u" in "up" and the "h" consonant. Finally, the word ends with an "m" sound. Therefore, the IPA transcription of "Tarpum" is /tɑrpʌm/.