Halloween is an annual holiday observed on October 31. It has roots in the Celtic festival of Samhain and the Christian holiday All Saints' Day, but is today largely a secular celebration. Common Halloween activities include trick-or-treating, wearing costumes and attending costume parties, carving jack-o'-lanterns, ghost tours, bonfires, apple bobbing, visiting haunted attractions, committing pranks, telling ghost stories or other frightening tales, and watching horror films.
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Halloween A tradition celebrated on the night of October 31, most notably by children dressing in costumes and going door-to-door collecting sweets.