pier

noun

1. A raised platform built from the shore out over water, supported on piles; used to secure, or provide access to shipping; a jetty.

   “Your boat is docked at the pier.”

2. A similar structure, especially at a seaside resort, used to provide entertainment.

   “There is a gaming arcade on the pier.”

   “A fresh breeze comes off the water and down the pier.”

   “Ryde Pier's claim to fame is being the world's oldest seaside pleasure pier, with construction starting in 1813.”

3. A structure supporting the junction between two spans of a bridge.

   “The force of the explosion demolished one pair of piers and two spans of the bridge crashed down into the river on top of the barges.”

4. A rectangular pillar, or similar structure, that supports an arch, wall or roof, or the hinges of a gate.
5. A long corridor-like structure with multiple gates extending from an airport terminal.

   “The new £216m pier will be used by all airlines currently operating out of T2, with more and more flights gradually moving over to the new pier once it becomes fully operational.”