n.

1. the statement (oral or written) of an exchange of promises;
   understanding
   
   • they had an agreement that they would not interfere in each other's business
   • there was an understanding between management and the workers
2. compatibility of observations;
   correspondence
   
   • there was no agreement between theory and measurement
   • the results of two tests were in correspondence
3. harmony of people's opinions or actions or characters;
   accord
   
   • the two parties were in agreement
4. the thing arranged or agreed to;
   arrangement
   
   • they made arrangements to meet in Chicago
5. the determination of grammatical inflection on the basis of word relations;
   concord
6. the verbal act of agreeing