A person or animal that runs away or has run away; a person, animal, or organization that escapes captivity or restrictions.
Runaway children are vulnerable to criminal exploitation.
A vehicle (especially, a train) that is out of control.
(usually attributive) 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.
The home side won in a runaway.