Children celebrating Halloween.
An example of Halloween is when children dress as ghosts and witches and go to neighbor's doors saying "Trick or treat!"
Origin of Halloweencontr. from all hallow even (see Allhallows); hallow from Old English halga, definite form of halig (see holy) in sense “holy person, hence saint”
Origin of HalloweenShort for All Hallow Even Allhallow(mas) even 2
A shortening of All-Hallow-even, All Hallows’ Eve (the name of the evening before All Saints Day).