fair play

fair play idiom
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.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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