Sailors' version of backgammon

Anything that isn't sea water. In this service it frequently describes a submerged extension of the shore.

The engine-room crew, although there is no record of there having been a coal-burning submarine.

As on the surface ships, a recruit.

To surface without intent. To stick the bow out of the water when rising in periscope depth.

The commander of a boat regardless of his real naval rank.

A term generally out of use among submariners inasmuch as all dives nowadays are crash dives. A crash dive primarily is a dive made through the momentum of the diesel engines, which are not shut off until the ship has started under water.

The most difficult of torpedo shots. Instead of firing at the side of a ship (a large target), the sub's fish are shot at the very narrow bow of the enemy as it heads directly toward the submarine.

In the submarine service the past tense of the verb dive.

See Spread.