When people are in harmony, they are in agreement or have a shared understanding. There are several synonyms that can be used to express this sentiment. They include words like aligned, in sync, in accord, united, agreeing, and on the same page. These words all suggest a sense of cohesion and unity, with individuals or groups working together towards a common goal. When relationships, groups, or teams are in harmony, they tend to be more productive and effective since they are able to communicate and collaborate in a cohesive manner. Overall, finding ways to promote harmony and understanding is crucial for the success and well-being of any community.