Shoreline 

pebbly or sandy shore, especially by the ocean between high- and low-water marks.

 long body of water curling into an arched form and breaking on the shore

area damaged by scraping or wearing away.

deflection from a straight path undergone by a light ray

the movement of sand and sediment along the coastline

the narrow flat area often found at the base of a sea 

the shoreline of a lake, bay, or sea

where cliffs are subject to erosion from the sea

column of rock standing in the sea, remaining after erosion of cliffs

light rain falls

a long, narrow sandbank, especially at the mouth of a river 

a bar of sand or shingle joining an island to the mainland

offshore deposits of sand or sediment that run parallel to the coastline.

a curved edge formed by two intersecting vaults.

barrier built out into a body of water to protect a coast or harbor from the force of waves.

wall or embankment erected to prevent the sea from encroaching on or eroding an area of land 

umping or pumping sand from elsewhere onto an eroding shoreline