open union

10 LETTERS · STARTS WITH O

open union is a valid 10-letter word worth 11 points in Scrabble and 16 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

O1P3E1N1U1N1I1O1N1

1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 =11 PTS

DOUBLE WORD → 22TRIPLE WORD → 33

MEANING

What does open union mean?