* "The ocean currents were strong and unpredictable." Here, "ocean" modifies "currents."
* "We enjoyed a delicious ocean-fresh seafood dinner." Here, "ocean" modifies "fresh."
* "The ocean breeze carried the salty scent of the sea." Here, "ocean" modifies "breeze."
* "She wore an ocean-blue dress to the party." Here, "ocean" modifies "blue."
Notice that in all these examples, "ocean" is used to describe a noun and is placed before the noun it modifies.