1 Aircraft carrier:

A full-size warship with the capacity for carrying and deploying aircraft.

2 Destroyer: Armed and fast vessels whose job is to escort and protect larger ships.

3 Cruiser: Generally larger and more power- ful than destroyers and often larger than battleships.

4 Battleship: The most powerful warship with a battery containing heavy-duty guns.

5 Frigate: Used to protect larger vessels, which can include ­submarines.

6 Gunboat: A smaller ship which has a gun and is used for bombarding coastal targets.

7 Minesweeper: It does as it says, uses mechanisms to keep the water clear of enemy mines.

8 Corvette: A lightly-armed warship, generally smaller than a frigate.

9 Dreadnought: Massive battleships that were used in the early 20th Century, especially by the UK and Germany

10 Submarine: A vessel capable of operating while submerged.