submarine
//ˌsʌb.məˈriːn//
Noun
submarineSingular
submarinesPlural
1
A watercraft capable of independent operation underwater, typically used for military, research, or exploration purposes.
The submarine dove deep beneath the ocean surface.
2
A long sandwich made with a crusty roll filled with various meats, cheeses, and vegetables.
I ordered a submarine with ham, cheese, and lettuce for lunch.
Adjective
submarineCanonical form
1
Existing, occurring, or used beneath the surface of the sea.
Scientists discovered a new submarine volcano near the island.
Synonym
Verb
1
To attack or sink a ship using a submarine.
The enemy fleet was submarined during the night attack.