A cruise missile is a guided missile used against terrestrial targets, that remains in the atmosphere and flies the major portion of its flight path at an approximately constant speed.

Cruise missiles are designed to deliver a large warhead over long distances with high precision.

Modern cruise missiles are capable of traveling at high subsonic, supersonic, or hypersonic speeds, are self-navigating, and are able to fly on a non-ballistic, extremely low-altitude trajectory.

Source: Agas Channel YouTube