Submarine

Watercraft capable of independent underwater operation.

sub

A submarine is a watercraft capable of independent operation underwater. Submarines are primarily used for military purposes such as surveillance and attack but also have civilian applications including marine research, salvage operations, and tourism.

Pronunciation

/sʌbˈmeɪn/

Etymology

From Italian sommergibile, from sommerso ("submerged") + -ibile (suffix indicating capability).

Explain Like I’m 5

Submarines are special boats that can go underwater and stay there for a long time, like exploring the ocean depths or quietly traveling without being seen.

Fun Facts

The first submarine was created in 1578 by William Bourne
Nuclear submarines don't need air to operate, as they generate their own power
Some submarines have observation windows called 'portholes'

FAQ

What is a submarine? A watercraft capable of independent underwater operation
How do submarines breathe underwater? They carry their own supply of oxygen
What is the deepest a submarine has gone? The Mariana Trench, approximately 36,000 feet

Synonyms — Similar or Related Terms

sub

Hypernyms — Broader Categories

watercraft vessel

Hyponyms — Specific Examples

nuclear submarine diesel-electric submarine

Meronyms — Parts or Components

hull periscope torpedo

Holonyms — Wholes or Groups

Navy fleet

Indexes

military equipment transportation vehicle watercraft

Built by Tim Jones