Main Entry:

Hal·low·een

Variant(s):

also Hal·low·e'en \ˌha-lə-ˈwēn, ˌhä-\

Function:

noun

Etymology:

short for All Hallow Even (All Saints' Eve)

Date:

circa 1700

: October 31 observed especially with dressing up in disguise, trick-or-treating, and displaying jack-o'-lanterns during the evening