A binding agreement is a legal contract that binds two or more parties to certain terms and conditions. However, there are a variety of synonyms that can be used to describe a binding agreement. One alternative phrase is "enforceable contract," which denotes a legally binding agreement that can be enforced by law. Another option is "exclusive agreement," which refers to a contract that exclusively binds the parties involved and prevents others from interfering. "Firm commitment" can also be used to convey the same meaning, but with a stronger emphasis on the resolute nature of the agreement. Ultimately, there are a variety of synonyms for binding agreements that can be used to emphasize different aspects of the agreement itself.