Pronunciation: /ˈsʌbməˌrin/
noun a watercraft capable of operating below the surface of the water
A1 A submarine is a type of boat that can travel underwater.
A2 The submarine dove deep into the ocean to explore the coral reefs.
B1 The navy uses submarines for military operations and surveillance.
B2 The advanced technology on modern submarines allows for long periods of underwater travel.
C1 The submarine crew underwent rigorous training before embarking on their mission.
C2 The submarine's stealth capabilities make it a valuable asset in covert operations.
adjective relating to, used in, or carried on by a submarine
A1 The submarine sandwich was delicious.
A2 The submarine exploration team discovered a new species of fish.
B1 The submarine warfare tactics used in World War II were revolutionary.
B2 The submarine volcano erupted, creating a new island.
C1 The submarine telecommunications cable spans thousands of miles under the ocean.
C2 The submarine warfare technology has advanced significantly in recent years.
formal The navy deployed a state-of-the-art submarine for the mission.
informal I heard they found a sunken submarine off the coast.
slang Let's dive into that project like a submarine!
figurative Her thoughts were like a submarine, hidden beneath the surface.
submarined
submarines
more submarine
most submarine
submarines
will submarine
have submarined
is submarining
submarine
submarine
to submarine
submarining
submarining