turnabout is fair play

: a change or reversal of direction, trend, policy, role, or character

: a changing from one allegiance to another

: turncoat, renegade

: marked by impartiality and honesty : free from self-interest, prejudice, or favoritism

: conforming with the established rules : allowed

: consonant with merit or importance : due

: a gathering of buyers and sellers at a particular place and time for trade

: a competitive exhibition usually with accompanying entertainment and amusements

: an exhibition designed to acquaint prospective buyers or the general public with a product

: in a manner that is honest or impartial or that conforms to rules : in a fair manner

: fairly

: clear

: to join so that the external surfaces blend smoothly

: something that is fair or fortunate (see ¹fair)

: beauty, fairness

: woman

: swordplay

: game, sport

: the conduct, course, or action of a game

: to engage in sport or recreation : frolic

: to have sexual relations

: to move aimlessly about : trifle