The ship quickly sank to the bottom of 'the ocean'.
We've sailed across hundreds of miles of 'ocean'.
There's a storm moving in from 'the ocean'.
(..) pick up some hoses... Billy, protect the roof. Don't wait before it gets too hot. What are you looking so miserable about? There's a whole ocean of oil under our feet! No one can get at it except for me. H.W. okay? No, he isn't. -Where is he? (..)2007 There Will Be Blood