parallel rule

13 LETTERS · STARTS WITH P

parallel rule is a valid 13-letter word worth 14 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3A1R1A1L1L1E1L1R1U1L1E1

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

DOUBLE WORD → 28TRIPLE WORD → 42

MEANING

What does parallel rule mean?