How Do You Spell TIPPEST?
Pronunciation: [tˈɪpəst] (IPA) 
The word "tippest" is spelled with two p's, as indicated by its IPA transcription /ˈtɪpəst/. The first syllable, "tip," is pronounced with a short "i" sound as in "it," followed by a voiced "p" sound. The "-est" ending indicates the superlative form of the adjective "tip," meaning the most pointed or sharp. While uncommon in modern usage, the spelling of "tippest" follows the regular pattern for forming superlatives in English by adding "-est" to the end of an adjective.
