She is vey 'fleet of foot'. [=she is able to run very fast]
The company has a large 'fleet' of delivery trucks.
He was the commander of the Pacific 'fleet'.
(..) You ride to war, but not to victory. Sauron's armies march on Minas Tirith, this you know. But in secret he sends another force which will attack from the river. A fleet of Corsair ships sails from the south. You're outnumbered, Aragorn. You need more men. There are none. (..)2003 The Lord of the Rings: The Return of the King