1. most-favored-nation - Noun
2. most-favored-nation - Adjective
of or relating to a commercial treaty where two nations agree to accord each other the same favorable terms that would be offered in treaties with any other nation
Source: WordNetmost favored nation
Adding a multilateral "most-favored-nation" component to that of reciprocity, the GATT served as a framework for the gradual reduction of tariffs over the subsequent half century. citation. Source: Internet
They declared that the policy of the United States was to uphold republican institutions and to seek treaties of commerce on a most-favored-nation basis. Source: Internet