Cruiser/ˈkruːzər/ Definition 1 of 4Pro Tip 1/3Naval Usage Used specifically to refer to military ships within naval forces. The admiral gave the order to deploy the cruisers. Pro Tip 2/3Imposing Presence Projects power and strength, especially in a military or defense context. A line of cruisers protected the carrier group. Pro Tip 3/3Historical Evolution Modern cruisers differ from historical ones; they have evolved with technology. Today's cruisers are equipped with advanced missile systems.