The spelling of "greeson" can be confusing due to the presence of the "ee" and "son" combinations. However, the phonetic transcription using the International Phonetic Alphabet (IPA) can help explain it. "Greeson" is pronounced as /ɡriːsən/, where the "ee" sounds like a long "e" and the "son" sounds like "sun". The "r" is also pronounced in this word, which may be easy to miss when reading it without the IPA transcription.