Huge, enormous (8)
I believe the answer is:
gigantic
I believe this is a double definition.
'huge' is the first definition.
(synonyms)
'enormous' is the second definition.
(synonyms)
(Other definitions for gigantic that I've seen before include "Great big" , "Thumping" , "Fantastically great" , "Huge, enormous" , "monster" .)