The definition of Halloween is a holiday celebrated in the U.S., Canada and the British Isles on October 31st where people dress in costumes and children go door to door asking for candy.(noun)
An example of Halloween is when children dress as ghosts and witches and go to neighbor's doors saying "Trick or treat!"
See Halloween in Webster's New World College Dictionary
See Halloween in American Heritage Dictionary 4
Origin: Short for All Hallow Even
Origin: : Allhallow(mas)
Origin: + even2.
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