a hollowed pumpkin with openings cut to represent human eyes, nose, and mouth and in which a candle or other light may be placed, traditionally made for display at Halloween.
a commercially made lantern resembling this.
any phenomenon of light, as a corona discharge or an ignis fatuus.
a poisonous luminescent orange fungus, Omphalotus olearius, often found in clusters at the base of hardwood tree stumps.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use jack-o'-lantern in a sentence
Hurrah for the Jack-o-lantern witch, some one said, and the crowd shouted their happiness and relief.
In her window there still stood the grinning Jack-o-lantern, and at sight of it bursts of laughter took away all thought of tears.
It had the appearance of a grinning monster, the boy laughed at his memory of the Jack-o-Lantern.
A lighted jack-o-lantern came from between the folds of a curtain which hung from the ceiling.Maida's Little Shop | Inez Haynes Irwin
At each corner of the table a jack-o-lantern and towards the center, baskets made of pumpkins full of red, green and yellow fruit.Dinners and Luncheons | Paul Pierce
British Dictionary definitions for jack-o'-lantern
a lantern made from a hollowed pumpkin, which has holes cut in it to represent a human face
a will-o'-the-wisp or similar phenomenon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012