Wharf vs. Quay: What's the Difference?

Wharf and Quay Definitions
Wharf
A pier where ships or boats are tied up and loaded or unloaded.
Quay
A wharf or reinforced bank for the loading or unloading of ships or boats.
Wharf
(Obsolete) A shore or riverbank.
Quay
(nautical) A stone or concrete structure on navigable water used for loading and unloading vessels; a wharf.
Moor up in the quay
Wharf
To moor (a vessel) at a wharf.
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Quay
To land or tie up at a quay or similar structure, especially used in the phrase "quay up".
Wharf
To take to or store (cargo) on a wharf.
Quay
T=far
Wharf
To furnish, equip, or protect with wharves or a wharf.
Quay
A mole, bank, or wharf, formed toward the sea, or at the side of a harbor, river, or other navigable water, for convenience in loading and unloading vessels.
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Wharf
To berth at a wharf.
Quay
To furnish with quays.
Wharf
A man-made landing place for ships on a shore or river bank.
Quay
Wharf usually built parallel to the shoreline
Wharf
The bank of a river, or the shore of the sea.
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Wharf
(transitive) To secure by a wharf.
Wharf
(transitive) To place on a wharf.
Wharf
A structure or platform of timber, masonry, iron, earth, or other material, built on the shore of a harbor, river, canal, or the like, and usually extending from the shore to deep water, so that vessels may lie close alongside to receive and discharge cargo, passengers, etc.; a quay; a pier.
Commerce pushes its wharves into the sea.
Out upon the wharfs they came,Knight and burgher, lord and dame.
Wharf
The bank of a river, or the shore of the sea.
Wharf
To guard or secure by a firm wall of timber or stone constructed like a wharf; to furnish with a wharf or wharfs.
Wharf
To place upon a wharf; to bring to a wharf.
Wharf
A platform built out from the shore into the water and supported by piles; provides access to ships and boats
Wharf
Provide with a wharf;
Wharf the mouth of the river
Wharf
Store on a wharf;
Wharf the merchandise
Wharf
Discharge at a wharf;
Wharf the passengers
Wharf
Come into or dock at a wharf;
The big ship wharfed in the evening
Wharf
Moor at a wharf;
The ship was wharfed