The spelling of the word "Biskara button" can be explained using IPA phonetic transcription. The first word "Biskara" is pronounced as /bɪsˈkɑːrə/. The stress is on the second syllable "ka", and it has a short "i" sound for the vowel in the first syllable. The second word "button" is pronounced as /ˈbʌtən/. The stress is on the first syllable "but", and it has a short "u" sound. The spelling of these words follows English phonetic rules and conventions.