The spelling of the word "RPTPSIGMA" may seem confusing at first glance, but its pronunciation can be deciphered through the use of International Phonetic Alphabet (IPA) transcription. The first two letters, "RP," sound like the English word "rip" with a trilled "r" sound. The following two letters, "TP," sound like the English word "tip." The "SIGMA" at the end sounds like the English word "sigma" with a hard "s" sound. Together, the word is pronounced as rɪptp'sɪɡmə.