A coast (also called the coastline, shoreline, or seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. [1][2] Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, such as that caused by waves.

We travelled across America coast to coast. Our products are sought after from coast to coast for their accuracy and reliability. On neither coast, however, do fisher training programs provide a positive and significant impact in terms of technical efficiency.

Coast definition: A hill or other slope down which one may coast, as on a sled.

coastal landforms, any of the relief features present along any coast, the result of a combination of processes, sediments, and the geology of the coast itself.

The coast is an area of land that is next to the sea. Campsites are usually situated along the coast, close to beaches. If a vehicle coasts somewhere, it continues to move there with the motor switched off, or without being pushed or pedalled. I switched off the engine and coasted round the corner. [VERB preposition/adverb]

Waves crash against the east coast of the island of Oahu, Hawaii. Like all Hawaiian islands, Oahu was formed by volcanoes. Oahu's volcanoes, Wai'anae and Ko'olau, have been extinct for thousands of years. Photograph by Mark Makowski, My Shot. The coast is the land along a sea. The boundary of a coast, where land meets water, is called the.