noun
affiliation
uh-fil-ee-AY-shun/əˌfɪliˈeɪʃn/
A connection with a group, organization, person, or cause.
The matching badge shows the new member's affiliation with the volunteer group.

Etymology
The 'son' root points to adoption, the word's original meaning. Figurative 'adoption by a society,' especially of a branch or chapter, extended this family image to organizational connection and association.
In context
if you have a question you stand up you identify yourself in any obvious organization or affiliation you might have
More examples
- Applicants need not disclose their political affiliations.
- The club ended its affiliation with the national organization.
- His affiliation with the charity began as a volunteer.
Forms
affiliation · affiliations
affiliate verb — To connect with an organization or group.
Similar words
- membership
- Specifically means belonging to a group as a member.
- association
- Can be a looser connection without formal organizational ties.