repro proof

11 LETTERS · STARTS WITH R

repro proof is a valid 11-letter word worth 17 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1E1P3R1O1P3R1O1O1F4

1 + 1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 4 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does repro proof mean?