Hallowe'en [noun] [not after the] - the last day of October, when according to Christian tradition the spirits of the dead return to where they lived and witches and demons become activeTo celebrate Halloween children dress up as witches, ghosts and devils. [U]I've spent three Halloweens in England. [C]See study section: Public holidays and special days in the UK and the US
HALLOWEEN
Meaning of HALLOWEEN in English
Cambridge English vocab. Кембриджский английский словарь. 2012