mother of parliaments

21 LETTERS · STARTS WITH M

mother of parliaments is a valid 21-letter word worth 31 points in Scrabble and 35 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
M3O1T1H4E1R1O1F4P3A1R1L1I1A1M3E1N1T1S1
3 + 1 + 1 + 4 + 1 + 1 + 0 + 1 + 4 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =31 PTS
DOUBLE WORD → 62TRIPLE WORD → 93
MEANING

What does mother of parliaments mean?

1