SUBMARINE

I. adjective Date: 1648 underwater , II. noun Date: 1703 something that functions or operates underwater, a large sandwich on a long split roll with any of a variety of fillings (as meatballs or cold cuts, cheese, lettuce, and tomato), III. verb (-rined; -rining) Date: 1914 transitive verb to attack by or as if by a ~ ; attack from beneath, intransitive verb to dive or slide under something