The prefix placed before the name of a warship of the British Navy to indicate that she is Her (His) Majesty's ship.

A look-out is stationed in a position to watch for danger ahead. To be on guard against sudden opposition or danger.

Therefore

Sediment & Water (formerly BS&W)

A pole with a blade at the end used to row a rowboat. Oars are different than paddles because they have a provision to be secured to the rowboat for rowing, such as an oarlock. The three parts to an oar are: the blade, the part which enters the water; the ...

An area of water totally or partially enclosed by coral islands, atolls, and reefs.

A beam attached to the top of the floors to add strength to the keel on a wooden boat.

Precipitation composed of balls or irregular lumps of ice with diameters between 5 and 50 mm.

To keep the sails full and drawing

The motion of a vessel when she goes off from her course.

The national flag flown on a jackstaff on the bow of naval ships while anchored.

A large piece of fabric designed to be hoisted on the spars of a sailboat in such a manner as to catch the wind and propel the boat.

International Maritime Consultative Organization. A forum in which most major maritime nations participate and through which recommendations for the carriage of dangerous goods, bulk commodities, and maritime regulations become internationally acceptable.

Erosion rate per unit of erosion index in a cultivated continuous fallow soil.

A navigational light which turns on and off in a regular pattern, but is on more than it is off, so the period of light is longer than the period of darkness.

[meaning]

Liquid flows through into the valve and flows out through one of two tubes which is selected by changing the angle of a lever.

New Building

International Gas carrier Code. Code for the construction and equipment of ships carrying liquified gases in bulk.

Tug/Maintenance Boat.