What is the meaning of Runaway?

A person or animal that runs away or has run away; a person, animal, or organization that escapes captivity or restrictions.

A vehicle (especially, a train) that is out of control.

An object or process that is out of control or out of equilibrium.

The act of running away, especially of a horse or teams.

An overwhelming victory.

Having run away; escaped; fugitive.

Having escaped from the control of the rider or driver.

Pertaining to or accomplished by running away or eloping.

Easily won, as a contest.

Accelerating out of control.

Unchecked; rampant.

Deserting or revolting against one's group, duties, expected conduct, or the like, especially to establish or join a rival group, change one's life drastically, etc.

Source: wiktionary.org