The spelling of the word "courchesne" is not intuitive, as it contains a silent "ch" and an "s" that is pronounced like a "z." In IPA phonetic transcription, the word is spelled /kuːrʃeɪn/. The "ch" sound in the middle of the word is represented by the "ʃ" symbol, while the long "oo" sound is represented by the "uː" symbol. The "s" at the end of the word is pronounced like a "z" and is represented by the "z" symbol. Knowing how to spell and pronounce words correctly can greatly enhance communication and understanding.