below zero

10 LETTERS · STARTS WITH B

below zero is a valid 10-letter word worth 23 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

B3E1L1O1W4Z10E1R1O1

3 + 1 + 1 + 1 + 4 + 0 + 10 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does below zero mean?