ACTA stands for Anti-Counterfeiting Trade Agreement. It basically meant that nations have made agreements not to trade in non authorized merchandise.

Dumping is a technique in which you capture a market by selling goods below cost. So, anti-dumping means that a trade agreement is made to prohibit dumping.

NAFTA, North America Free Trade Agreement, is an example of a international trade agreement. The European Union has a trade agreement between member countries.

North American Free Trade Agreement (NAFTA)

Normal Trade Agreement