Harmony of opinions is a concept that refers to the AGREEMENT between two or more people on a particular issue. The term can be expressed in two words: AGREEMENT (9 letters) and ACCORD (6 letters). AGREEMENT is defined as a mutual understanding between two or more parties, while ACCORD is defined as a formal AGREEMENT or settlement. Both terms refer to the same concept of harmony of opinions, which is the result of a consensus between two or more people.