diploma piece

13 LETTERS · STARTS WITH D

diploma piece is a valid 13-letter word worth 21 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2I1P3L1O1M3A1P3I1E1C3E1

2 + 1 + 3 + 1 + 1 + 3 + 1 + 0 + 3 + 1 + 1 + 3 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does diploma piece mean?