hyperbolise

VERB
11 LETTERS · 4 SYLLABLES · STARTS WITH H

hyperbolise is a valid 11-letter word worth 21 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
H4Y4P3E1R1B3O1L1I1S1E1
4 + 4 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does hyperbolise mean?