Definitions

1. noun

a connection or relationship between people, groups, or organizations, especially one that is formal or official

“The company’s affiliation with the charity led to a significant increase in donations.”

2. noun

a group or organization that people belong to, especially a professional or social group

“She was a member of a prestigious academic affiliation that promoted research in the field.”

3. noun

a connection or tie that is not necessarily formal or official, but exists between people or groups

“There was a strong affiliation between the two families, who had been friends for many years.”

4. verb

to express or declare one’s support or membership for something, especially a cause or organization

“The politician’s affiliation with the new party caused controversy among his former supporters.”