The company has become a 'giant' of the automotive industry. [=it has become very large and successful]
a big baby who grew up to be a 'giant' of a man [=a very large man]
a 'giant' photograph/machine/wrestler
(..) How can that be? We're in a depression. A third of the country's out of work. People are drifting by the thousands, looking for jobs, for greener grass. Even a giant like Coffey wouldn't get noticed everywhere. Not until he kills a couple of little girls. He is... ...strange, I admit. (..)1999 The Green Mile