imperial octavo

15 LETTERS · STARTS WITH I

imperial octavo is a valid 15-letter word worth 23 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1M3P3E1R1I1A1L1O1C3T1A1V4O1

1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 3 + 1 + 1 + 4 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does imperial octavo mean?