The spelling of the word "RUNN" might look strange, but it can be explained using IPA phonetic transcription. In IPA, "R" is the symbol for the "r" sound, while "U" represents the "uh" sound. The double "N" indicates a lengthened "n" sound, like in the word "winning." So, the pronunciation of "RUNN" would be written as /rʌn/. Despite the unusual spelling, the phonetic transcription makes it clear how the word should be pronounced.