launch upon

11 LETTERS · STARTS WITH L

launch upon is a valid 11-letter word worth 17 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1A1U1N1C3H4U1P3O1N1

1 + 1 + 1 + 1 + 3 + 4 + 0 + 1 + 3 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does launch upon mean?