The spelling of the word "nubbest" may cause confusion due to its unusual pronunciation. In IPA phonetic transcription, it is written as /ˈnʌbɪst/. The letter "u" is pronounced as "uh" and the double "b" sounds like a short, sharp burst of air (a bilabial plosive). The "e" at the end is silent, but it indicates that the word is in the superlative form, meaning it is the most "nubby". Despite its strange spelling, "nubbest" is a valid word in the English language.