A MOU full form is a memorandum of understanding. A formal agreement between two or more parties is a memorandum of understanding MOU . MOU full form is Memorandum of Understanding MOU . It outlines an agreement that is meant to be signed between two or more parties for the purpose of collaboration. MoU stands for memorandum of understanding, a type of agreement between two or more parties that expresses a common line of action. MoUs can be legally binding or non-binding, depending on the context and the parties' intent. An MOU vs. a memorandum of agreement A memorandum of agreement, or MOA, is an alternate term for memorandum of understanding. They are essentially the same kind of document that expresses a mutual understanding between two or more companies, government agencies or other parties.