From Longman Dictionary of Contemporary EnglishHalloweenHal‧low‧een, Hallowe'en /ˌhæləʊˈiːn◂ $ -loʊ-/ ●●● S3 noun [uncountable] TMCthe night of October 31st, which is now celebrated by children, who dress in costumes and go from house to house asking for sweets, especially in the US and Canada. In the past, people believed the souls of dead people appeared on Halloween. → trick or treat
Examples from the Corpus
Halloween• He left a box of matches and rags outside his Cardiff shop to make the fire look like a Halloween prank.• His face looks like a Halloween mask - fixed and rigid; a shiny mask all over his face.• He returned with a Man from Mullingar, a newsagent who wanted a Halloween witch to hang up in his shop.• Macnas will also be closing the festival during Halloween weekend with the outdoor Noah's Ark parade.• But he was taken last month to Bill Wightman's gallops on the lovely downland on which the great Halloween was trained.• His Halloween programme Ghostwatch so scared my children that I have had to sleep on a camp bed in their room.• We went two miles - not quite like Halloween perhaps but still not bad.• The Halloween night fight at London's Earls Court was hyped as the worst nightmare for one of the boxers.Origin Halloween (1700-1800) All Hallow Even “All Saints' Eve”; → HALLOWED 