- 1a long low structure built in a lake, river, or the ocean and joined to the land at one end, used by boats to allow passengers to get on and off The river bus leaves from Pier 4. synonym dock
- 2a long structure built in the ocean and joined to the land at one end, often with places of entertainment on it After lunch, the family went for a walk along the pier. Santa Monica pier
- 3(technology) a large strong piece of wood, metal, or stone that is used to support a roof, wall, bridge, etc.
Check pronunciation: pier