lightning speed

15 LETTERS · STARTS WITH L

lightning speed is a valid 15-letter word worth 22 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1G2H4T1N1I1N1G2S1P3E1E1D2

1 + 1 + 2 + 4 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 3 + 1 + 1 + 2 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does lightning speed mean?