The word "lychee" is pronounced mainly in two ways in English:

• British and Australian English pronunciation: /ˈlaɪ.tʃiː/ (sounds like "lie-chee")
• American English pronunciation: /ˈliː.tʃiː/ (sounds like "lee-chee")

Both pronunciations are correct and accepted. The pronunciation /ˈlaɪ.tʃiː/ is closer to the original Cantonese pronunciation, while /ˈliː.tʃiː/ is also common in the U.S.