- Archaic ignis fatuus (sense )
- a hollow pumpkin cut to look like a face and usually illuminated inside as by a candle, used as a decoration at Halloween
- A lantern made from a hollowed pumpkin with a carved face, usually displayed on Halloween.
- See ignis fatuus.
Origin of jack-o'-lanternFrom earlier Jack-with-a-lantern, man with a lantern, will-o'-the-wisp.
(plural jack o'lanterns)
- (idiomatic, English folklore) will o' the wisp, a strange light that attracts travellers
- (US, tradition) A vegetable, usually a pumpkin, but alternatively a turnip, carved into the form of a face and lighted within by a candle. Associated chiefly with the holiday Halloween.