Definition of "submarine" []

• Nautical A vessel that is capable of operating submerged. Also called sub1. (noun)
• A large sandwich consisting of a long roll split lengthwise and filled with layers of meat, cheese, tomatoes, lettuce, and condiments. Also called sub1; also called regionally Cuban sandwich, grinder, hero, hoagie, Italian sandwich, poor boy, torpedo, wedge, zep. (noun)
• Beneath the surface of the water; undersea. (adjective)
• To attack by submarine, especially with torpedoes. (verb-transitive)
• Sports To knock down with a blow to the legs. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When his submarine is bombed, McClenahan gallantly chooses to save his crew over himself."
• "Danny Lawson/Associated Press The submarine is armed with Spearfish torpedoes and Tomahawk cruise missiles."
• "The submarine is armed with Spearfish torpedoes and Tomahawk cruise missiles."