illuminating oil

16 LETTERS · STARTS WITH I

illuminating oil is a valid 16-letter word worth 18 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1L1L1U1M3I1N1A1T1I1N1G2O1I1L1

1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does illuminating oil mean?