The spelling of the word "bitton" can be explained through its phonetic transcription using the International Phonetic Alphabet (IPA). The word is pronounced as "bɪtən" which means the same as "button". However, the "t" sound in button is replaced with a "tə" sound in bitton. This allows for a clearer enunciation of the "t" sound and aids in differentiating it from other homophones like "button". While not a commonly used word, understanding its spelling can enhance one's vocabulary and communication skills.