How Do You Say It?

HALLOW---EEN ?

OR

HALL---OWEEN ?

"Hallow" een like all hallows eve?  or "Hall" oween like the hallway of a house?

I say "Hallow"een.  But I've noticed that there are a lot of people who say the other.  I looked it up in the dictionary and it lists the pronunciation as 'hall' oween.  Interesting.