What does 'affinity' refer to?

Affinity refers to a natural attraction or a sense of kinship between individuals or groups. It implies a feeling of connection, similarity, or harmony, making it a positive term that denotes an emotional or relational bond. For example, two people may feel an affinity for each other due to shared interests, values, or backgrounds.

The other options present meanings that contrast sharply with the idea of affinity. One suggests a strong dislike, which directly opposes the notion of attraction. Another describes a formal agreement, which does not encompass the emotional or interpersonal aspects associated with affinity. Lastly, highlighting a significant difference between two groups stands in stark contrast to the concept of affinity, which emphasizes similarities rather than disparities.