The spelling of the word "Theocodin" can be explained using the International Phonetic Alphabet (IPA). The first letter, "th," is pronounced as a voiceless dental fricative. The following letters, "eo," are pronounced as a long "e" sound and a schwa vowel sound, respectively. The next two letters, "co," are pronounced as a voiceless velar stop followed by a short "o" sound. Lastly, the "din" is pronounced as a voiced alveolar stop followed by a short "i" sound and a nasal consonant.