Jack-o'-lantern
/ˈdʒækəʊˌlætən/noun
1
- a lantern made from a hollowed-out pumpkin or turnip in which holes are cut to represent facial features, typically made at Halloween杰克灯（挖空后雕成人面形的南瓜灯或萝卜灯,用于万圣节）。
2
- archaic a will-o'-the wisp〈古〉鬼火, 磷火; 捉摸不定的东西。