| just and honorable treatment, action, or conduct: The political campaign was notably lacking in fair play. |

| fair play n. Conformity to established rules. |
fair play
Conformity to established rules; upright conduct and equitable conditions. For example, The coach insists on fair play. Shakespeare used this idiom in King John (5:2): "According to the fair play of the world, let me have audience." [Late 1500s] Also see turnabout is fair play.