名词

1. （通常指伸向大海的）凸式码头，突码头，突堤
A pier is a platform sticking out into water, usually the sea, which people walk along or use when getting onto or off boats.

1. a platform built out from the shore into the water and supported by piles
provides access to ships and boats

Synonym: wharfwharfagedock

2. a support for two adjacent bridge spans

3. (architecture) a vertical supporting structure (as a portion of wall between two doors or windows)