submarine
word
Definition
A submarine is a ship that can travel underwater as well as on the surface of the sea. The word can also be used as an adjective for things related to underwater travel or action.
Usage & Nuances
Most commonly, 'submarine' is a countable noun: 'a submarine', 'two submarines'. It is often used in military or naval contexts, but it can also describe research vessels. In some varieties of English, especially American English, 'submarine' can also mean a long sandwich, though that is a separate meaning and usually clear from context.
Example Sentences
We saw a submarine in the museum.
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That submarine is very large.
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The documentary showed how a submarine crew lives for months at sea.
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The submarine went under the water.
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I didn’t expect the old movie to spend so much time inside the submarine.
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When I was a kid, I thought a submarine could stay underwater forever.
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