reaffiliation
/ˌriːəˌfɪliˈeɪʃən/
noun
- The act of joining or becoming a member of a group, organization, or political party again after having left it.
- The club saw a steady increase in reaffiliations after lowering the membership fee.
- After a decade as an independent, her reaffiliation with the party surprised many voters.
- His reaffiliation with the alumni association allowed him to attend the annual reunion.