DictionaryfederationUnited organization
noun

federation

fed-uh-RAY-shun/ˌfedəˈreɪʃn/

A union formed by bringing separate bodies under common authority.

The three regions form a federation with a shared central assembly.

Three miniature interlocking regions each have a small local council building and connect to one common assembly building, a physical tabletop model of a federation under shared authority.
Etymology

Latin foederare meant 'to league together' and came from the word for a covenant. Federation names the resulting union: members joined by agreement under shared authority.

In context

StudyIQ IAS: English11:27
Article one says union of states. It means Indian federation is not the result of agreement by the states.
Complete Indian Polity | UPSC CSE 2025-26 | Salient Features of Indian Constitution | Ch-3 | StudyIQ

More examples

  • Each state in the federation keeps its own legislature.
  • The federation sets safety standards for its member clubs.
  • Several trade unions join together in a national federation.

Forms

federation · federations

federal adjective — Relating to a federation's shared government.

federate verb — To unite under a shared authority.

Similar words

confederation
Usually gives member bodies more independence from central authority.
union
Broader term that does not necessarily imply shared authority.
alliance
Emphasizes cooperation among members rather than a common governing body.