English Reference
noun · adjective

runaway

n. · adj.
US /ˈɹənəˌweɪ/ UK /ɹˈʌnəwˌeɪ/ run·away UK spelling runaways

  1. 01 B2 Upper Intermediate

    n.someone, usually a young person, who leaves their home or family without permission.

    n.a person, typically a minor, who has left their home or place of residence without parental or guardian consent.

    Simple

    The police found the runaway at the train station and took him home safely.

    In context

    Social workers often encounter runaways who have fled difficult domestic situations in search of independence in the city.

    escapeefugitivemissing person
  2. 02 B2 Upper Intermediate

    adj.moving or happening very quickly in a way that cannot be stopped.

    adj.characterised by rapid, unchecked increase or movement that has escaped human or mechanical control.

    Simple

    The truck became a runaway vehicle after its brakes failed on the steep hill.

    In context

    Economists expressed deep concern over runaway inflation, which threatened to devalue the national currency within a matter of months.

  3. 03 C1 Advanced Informal Sport

    adj.describes a win or success that is very easy and happens by a large amount.

    adj.denoting a victory or success achieved easily and by a substantial margin.

    Simple

    The team had a runaway victory, winning the game by forty points.

    In context

    After the early polls closed, it became clear that the incumbent was heading for a runaway success in the local elections.

  4. 04 C1 Advanced Informal

    adj.leaving a group or job suddenly to do something different or join a rival.

    adj.deserting or revolting against a group or established duties, often to join a competing faction.

    Simple

    The runaway members of the party decided to start their own political group.

    In context

    The company struggled to contain the damage after a runaway executive leaked trade secrets to their primary competitor.

Sirius, the runaway Allsvenskan leaders, are not most teams.

The Guardian· 14 Aug 2026

Talent is spread evenly across the country; opportunity is not.” The reasons for London’s runaway success are many.

The Guardian· 13 Aug 2026

Deverbal from run away.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated