A dock is a nautical structure or area used for mooring, loading, unloading, or repairing vessels. It serves as a interface between land and water, allowing secure access for passengers and cargo. Docks can be floating platforms, fixed piers/wharves, or specialized basins (wet/dry) that control water levels for maintenance.

Key Aspects of a Dock:
Structure: A platform extending into or floating on the water where boats are tied up (moored).

Area/Basin: A specific area of water, often between two piers, where ships are held.

Types: Includes fixed piers, floating docks, and dry docks (used for repairing ships).

Functions: Used for loading/unloading cargo, boarding passengers, fueling, and repairing vessels.

Difference from Pier: While used interchangeably in the US, a dock generally refers to the, basin or landing area, whereas a pier usually refers to the structure extending into the water.