The word "hylion" is spelled as /ˈhaɪliən/. The first syllable "hyl" is pronounced as "high-l" and the "ion" is pronounced as "ee-on". The phonetic transcription shows that the stress is on the first syllable. This word is not commonly used and may be unfamiliar to many people. It is important to practice proper spelling and pronunciation of words to effectively communicate with others.