What does consonant mean in the context of harmony?

In the context of harmony, the term "consonant" signifies a quality of agreement and compatibility among elements. This could apply to musical notes, ideas, or social concepts that blend together seamlessly to create a sense of pleasantness or unity. Consonance, as a concept, often evokes a feeling of stability and resolution, contrasting with dissonance, which tends to indicate a lack of harmony or tension.

When discussing harmony, consonant elements work together in a way that enhances each other's strengths, creating an overall pleasing effect. This is why the correct answer emphasizes characterized by agreement and harmony, illustrating the idea that consonance leads to a harmonious result rather than conflict or discord.