Dock (maritime), an area of water for building or repairing or loading and unloading ships or ferries
Related words -
A port is a facility for receiving ships and transferring cargo. Laem Chabang on the 'Eastern Seaboard' of the Gulf of Thailand is an example as is the American built facility at Sattahip during the Vietnam War.
Here is an interesting 1967 historical video of 'Thailand's Role in the Vietnam War'.
A quay, pronounced 'kay', 'key' or 'kway', is a wharf or bank where ships and other vessels are loaded.
A harbor or harbour or haven, is a place where ships may shelter from the weather or are stored. This is often the other word used when the word 'dock' is heard or seen on the exercise.
A jetty is a structure, such as a pier, that projects into a body of
water to influence the current or tide or to protect a harbor or
shoreline from storms or erosion.
A wharf is a fixed platform, commonly on pilings, where ships are loaded and unloaded.