Originally posted by: moshquerade
I've always pronounced it "Hollow-ween". Click on the little megaphone icon here http://www.answers.com/halloween&r=67
he's saying, Hollow, not Hallow.
Hal·low·een Show Spelled Pronunciation[hal-uh-ween, -oh-een, hol-]
?noun
the evening of October 31; the eve of All Saints' Day; Allhallows Eve: observed esp. by children in costumes who solicit treats, often by threatening minor pranks.
Also, Hal·low·e'en.