pier pier /ˈpɪr/

noun

1. () A platform built out from the shore into the water and supported by piles; provides access to ships and boats  ( dock , wharfage , pier , wharf )
   a platform built out from the shore into the water and supported by piles; provides access to ships and boats
    The passengers were excited to disembark at the dock and explore the city
   The passengers were excited to disembark at the dock and explore the city
   
   
2. A support for two adjacent bridge spans  ( pier )
   a support for two adjacent bridge spans
    The new bridge will be supported by several piers.
   The new bridge will be supported by several piers.
   
   
3. (architecture) a vertical supporting structure (as a portion of wall between two doors or windows)  ( pier )
   (architecture) a vertical supporting structure (as a portion of wall between two doors or windows)