The spelling of the word 'joske' can be explained through its phonetic transcription, which is /dʒɒsk/. The first sound is represented by the letter 'j' and pronounced as the /dʒ/ sound. The second syllable is represented by the letter 'o' and has an open /ɒ/ sound. The last syllable is represented by the letters 'sk' and pronounced with a /sk/ sound. The spelling of 'joske' may seem unusual, but it follows the rules of English phonetics where letters can represent multiple sounds.