Definition of jack-o'-lantern in English:

jack-o'-lantern

noun

  • 1A lantern made from a hollowed-out pumpkin in which holes are cut to represent facial features, typically made at Halloween.

    • ‘But zucchini is a different matter: His squash grow so well - and so large - that he saves the biggest ones to carve as green jack-o'-lanterns for Halloween.’
    • ‘Candlelit jack-o'-lanterns should be kept away from landings and doorsteps where costumes could brush against the flame.’
    • ‘He wasn't around last Halloween when someone smashed the six jack-o'-lanterns I carved to spell ‘BE SAFE.’’
    • ‘Make sure costumes are short enough that kids don't trip on them or inadvertently brush them against the low-lying flames in jack-o'-lanterns and candles.’
    • ‘Cast a delicious spell on a room by lighting jack-o'-lanterns with real cinnamon, clove and nutmeg candles made of clean-burning soy wax - you'll enjoy all tire sensory seduction of pumpkin pie without the work.’
  • 2archaic An ignis fatuus.

Pronunciation:

jack-o'-lantern

/ˈjakəˌlan(t)ərn/