cruis·er / ˈkroōzər/ • n. 1. a relatively fast warship larger than a destroyer and less heavily armed than a battleship.2. a yacht or motorboat with passenger accommodations, designed for leisure use. ∎  a person who goes on a pleasure cruise.3. an automobile that can be driven smoothly at high speed. ∎  a police patrol car.

cruiser Warship – smaller, lighter and faster than a battleship – ranging in size from 7500 to 21,000 tonnes. After World War I, arms limitation treaties restricted its guns to 200mm (8in). Since World War II, cruisers have replaced battleships as the major warships of a modern navy.