open primary

NOUN /oʊpən_'praɪmɛri/
12 LETTERS · 4 SYLLABLES · STARTS WITH O

open primary is a valid 12-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
O1P3E1N1P3R1I1M3A1R1Y4
1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 4 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does open primary mean?

NOUN · 1 SENSE
1

A primary in which any registered voter can vote (but must vote for candidates of only one party).