but piece

9 LETTERS · STARTS WITH B

but piece is a valid 9-letter word worth 14 points in Scrabble and 18 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

B3U1T1P3I1E1C3E1

3 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 =14 PTS

DOUBLE WORD → 28TRIPLE WORD → 42

MEANING

What does but piece mean?