D defs.my
Entry 1 sense Webster, 1913

Halloween

/(hăl`lō̇*ēn")/ · Hal·low·een · IPA /ˌhæ.ləˈwiːn/
01 n. The evening preceding Allhallows or All Saints' Day (November 1); also the entire day, October 31. It is often marked by parties or celebr…
  1. 1.
    The evening preceding Allhallows or All Saints' Day (November 1); also the entire day, October 31. It is often marked by parties or celebrations, and sometimes by pranks played by young people.[Scot.]