pier noun definition in Coastlines and the sea topic from the Oxford Advanced Learner's Dictionary

pier

 noun: Coastlines and the sea topic
1 a long structure built in the sea 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. Blackpool pier the fishermen on the pier 2 a long low structure built in a lake, river or the sea 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.