Submarine
(noun)
- A watercraft designed to operate underwater.
- A naval vessel that is capable of submerging and operating underwater.
- A type of boat or ship that is designed to be operated below the surface of the water.
Origin:
From sub- + marine, meaning "a watercraft designed to operate underwater.".
Examples:
- The submarine was used for research missions in the ocean.
- The submarine was equipped with torpedoes for military use.
- The submarine was able to stay underwater for several days.
- The submarine was part of a fleet of submarines.
- The submarine was instrumental in winning the war.