most-favoured nation
noun[C]
ECONOMICS,POLITICSUK(USmost-favored nation)ukus(abbreviationMFN)acountrythat is given thehighestlevelofadvantagesby anothercountryininternationaltrade, such aslowtaxesonimports:
Fulltradingprivilegesmeansgiving acountrymost-favoured-nationstatus.