/məʊst ˈfeɪvəd ˈneɪʃən klɔːz/ – Phrase
Definition: Điều khoản ưu đãi nhất cho quốc gia được ưa chuộng nhất
A more thorough explanation: an agreement between countries that each will grant the other a special level or status as a trading partner
Example: These sanctions ignore both the most favored nation clause between our countries and the principle of fair and free competition.