what is a quay

A quay, also known as a wharf, staith, or staithe, is a structure built on the shore of a harbor or on the bank of a river or canal where ships can dock to load and unload cargo or passengers. It is a long platform, usually built of stone, where boats can be tied up and their goods can be loaded or unloaded. The term "quay" is more common in the United Kingdom, Canada, Australia, and many other Commonwealth countries, and the Republic of Ireland, whereas the term "wharf" is more common in the United States. In some contexts, "wharf" and "quay" may be used to mean pier, berth, or jetty.