term costume can refer to wardrobe and dress in general, or to the
distinctive style of dress of a particular people, class, or period.
Costume may also refer to the artistic arrangement of accessories in a
picture, statue, poem, or play, appropriate to the time, place, or
other circumstances represented or described, or to a particular style
of clothing worn to portray the wearer as a character or type of
character other than their regular persona at a social event such as a
masquerade, a fancy dress party or in an artistic theatrical
Halloween costumes are outfits worn on or around October 31, the day of
Halloween. Halloween is a modern-day holiday originating in the Celtic
pagan holiday of Samhain (in Christian times, the eve of All Saints
Day). Costumes and masks were also worn at the festivals in an attempt
to copy the evil spirits or placate them.