hang on

VERB
7 LETTERS · STARTS WITH H

hang on is a valid 7-letter word worth 10 points in Scrabble and 12 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
H4A1N1G2O1N1
4 + 1 + 1 + 2 + 0 + 1 + 1 =10 PTS
DOUBLE WORD → 20TRIPLE WORD → 30
MEANING

What does hang on mean?