noun

submarine

submarine

The submarine dived deep into the ocean.

The submarine dived deep into the ocean.

They travelled by submarine.

They traveled by submarine.

a/the submarine a type of watercraft A submarine can stay underwater for months.

Synonyms: sub, U-boat

From Latin 'sub' (under) and 'marinus' (of the sea). Literally 'under the sea'.

Break it down: 'sub' (under) + 'marine' (sea). A vehicle that goes under the sea.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.