lychee lychee (ALSOlitchi) /ˈlaɪ.tʃiː/ aep /ˈliː.tʃiː/ noun [C] ► F0 a fruit with a rough, brown shell and sweet, white flesh around a large, shiny, brown seed, or the evergreen tree (= one that never loses its leaves) on which this fruit growsThesaurus+: ↑Fruit TreesThesaurus+: ↑Types of fruit