Meaning

• 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."

Meaning

• Having run away; escaped; fugitive

  "a runaway thief"

• Easily won, as a contest

  "a runaway victory at the polls"

• Unchecked; rampant

  "runaway prices"

• 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.

  "The runaway delegates nominated their own candidate."