These examples are automatically selected from different online sources of information to reflect the current use of the word “agreement.” The opinions expressed in the examples do not reflect the views of Merriam-Webster or its publishers. Send us comments. Note: Under common law, the agreement is a necessary part of a valid contract. Under the Single Code of Trade, paragraph 1-201 (3), the agreement is the good deal of the contracting parties, as they are explicitly presented by their language or implicitly by other circumstances (as transactions). Britannica.com: Encyclopedia Article on the Middle English Agreement agreement, borrowed from the Anglo-French agreement, approval, of the agreement “please, okay” -ment .