Congruity is a term that refers to the state of being in agreement or HARMONY with something else. It is related to concepts such as COMPATIBILITY, COHERENCE, CORRESPONDENCE, CONSONANCE, CONSISTENCY, HARMONY, and CONFORMITY. These terms all refer to the idea of things being in agreement or in line with each other. For example, COMPATIBILITY refers to two or more things being able to work together, while COHERENCE refers to the idea of things making sense when put together. CORRESPONDENCE is the idea of two or more things having a similar relationship, while CONSONANCE is the idea of two or more things having a pleasing sound when put together. CONSISTENCY is the idea of things being the same over time, while HARMONY is the idea of two or more things working together in a pleasing way. Finally, CONFORMITY is the idea of things following a certain set of rules or standards. All of these concepts are related to the concept of congruity, which is the idea of things being in agreement or HARMONY with each other.