等とう価か交こう換かん

noun

fair exchange; equivalent exchange; exchange of equal value

Refers to exchanging things of equal worth, often used in economic, legal, or philosophical contexts. Can imply a balanced trade-off.

• 等とう価か交こう換かんの原げん則そくに従したがって、両りょう者しゃは土と地ちを交こう換かんした。

  Following the principle of equivalent exchange, the two parties exchanged land.

• この取とり引ひきは等とう価か交こう換かんとは言いえない。

  This transaction cannot be called a fair exchange.