If you think that the object that you describe si big then you can use
The gallery was very big.
You're in big trouble!
the man had a big beard!
We will designate her in the big crowd.
"Appositives is a sort of big word"
the museum had small and big statues.
The man has a big bald head!
a big meany!
a big scud of rain will fall
I backed away from the big dog.
the Atlantic ocean is a big sea.
I have entered a GATE which was very big