1. Union
2. Federal, northern, union

1. closed, organized, organised, unionized, unionised, labor union
2. trade union, trades union, brotherhood, organization, organisation, Union
3. North, United States, United States of America, America, US, U.S., USA, U.S.A., coupling
4. mating, pairing, conjugation, sexual union, sexual activity, sexual practice, sex, sex activity, unification
5. state, marriage
6. matrimony, spousal relationship, wedlock, marital status, conglutination
7. healing, political unit
8. sum
9. join, set, happening
10. occurrence, natural event, device
11. unification
11. uniting, conjugation, jointure, combination, combining, compounding