1.
quay wall; wharf; pier
A solid vertical wall along a waterfront where ships can dock, built from stone or concrete.
A compound of 岸 (shore, bank) and 壁 (wall). Refers specifically to the solid wall structure at a port, not just any waterfront.
Usage
Commonly encountered in news about ports, shipping, and maritime topics. Also appears in fishing contexts, since quay walls are popular spots for recreational fishing in Japan. The famous postwar song 岸壁の母 ("The Mother at the Wharf") tells of a woman waiting for her son to return from war.