The phrase "wast service of" may seem tricky to spell at first glance. However, if we break it down phonetically using IPA transcription, it becomes clearer. "Wast" is pronounced as /wɑst/, with a long "ah" sound in the first syllable and a "st" sound at the end. "Service" is pronounced as /ˈsɜrvɪs/, with an emphasis on the first syllable and a short "er" sound. Finally, "of" is simply pronounced as /ʌv/. Together, they form the phrase "wast service of" which relates to a provision or contribution that is no longer useful.