The Pacific Ocean
The state on the west coast of the United States with the longest coastline is California. California borders on the Pacific Ocean.
The Indian Ocean borders Australia's western coastline.
Oregon borders the Pacific Ocean, California and Nevada.
Oregon borders the Pacific Ocean, California and Nevada.
The Southern Ocean, also known as the Great Southern Ocean, borders Australia's southern coastline.
The Pacific Ocean
Oregon borders California, Nevada and the Pacific Ocean. Salem is the capital city of Oregon.
Oregon borders California, Nevada and the Pacific Ocean. Salem is the capital city of Oregon.
Atlantic
To the west, the Indian Ocean touches (not borders) Australia's coastline. To the east, it is the Pacific Ocean. Three seas border Australia's northern coastline: the Timor Sea, the Arafura Sea and the Coral Sea.
Oregon borders California, Nevada and the Pacific Ocean. Salem is the capital city in the U.S. state of Oregon.
A shore or shoreline borders any large body of water however a coast or coastline borders an open ocean or a sheltered coast in something like a gulf or a bay. With no ocean or sea you therefore have no coastline.