Commerce Acronym is a term used to describe acronyms related to the field of commerce. GATT (4 letters) stands for General Agreement on Tariffs and Trade, which was an international agreement signed in 1947 that aimed to reduce tariffs and other trade barriers between countries. NAFTA (5 letters) stands for North American Free Trade Agreement, which was signed in 1994 and created a free trade zone between Canada, the United States, and Mexico.