coconut
Refers specifically to the fruit of the palm tree, not the tree itself.
I cracked open a coconut and ate the inside.
Common katakana-kanji mixed spelling for the coconut fruit.
Kanji spelling using 椰子 for 'palm tree'; less common but still seen.
Compound of ヤシ (palm tree) + の (possessive particle) + 実 (fruit, nut).