Aback
When the wind pushes the sails back on to the mast, which is how the meaning of "shocked surprise" came about.

Abaft
Towards the rear or stern of a ship.

Abeam
The width direction of a ship or right angles from the long length of the ship.

Accommodation Ladder
A ladder that is flush with the side of a ship that allow people to walk down the side of the ship and get into a smaller boat.

Aft
Towards the rear or stern of a ship.

Ahoy
A call used by sailors to attract attention.

Alee
The side of a ship away from the wind, the leeward side.

Amidships
Midway between the stem (front) and stern (back).

Anchor
A weight or device laid on the seabed and tied to the ship to keep it in one place in the water.

Anglo-Dutch Wars
A series of wars fought between the Dutch and the English during the 17th century brought on by trade wars and navigation disputes. One of the famous battles is the Battle of Lowestoft during the Second Dutch War.

Astern
Towards the stern or rear of a ship.

Avast
From the Dutch word "houdvast" which means stand still or stop.

Aweather
On the weather or windward side.

Aweigh
When the anchor is raised from the seabed.

Ay-Ay or Aye-Aye
Sailor's normal "yes".

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