stamp upon

10 LETTERS · STARTS WITH S

stamp upon is a valid 10-letter word worth 15 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1A1M3P3U1P3O1N1

1 + 1 + 1 + 3 + 3 + 0 + 1 + 3 + 1 + 1 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does stamp upon mean?