柯林斯詞典acorn /?e?k??n/ (acorns) 1. N-COUNT An acorn is a pale oval nut that is the fruit of an oak tree. 橡實(shí) 返回 acorn劍橋詞典an oval nut that grows on an oak tree and has an outer part shaped like a cup 橡實(shí)，橡子 返回 acorn