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• federation
  federation

  noun

  the act of federating or uniting in a league.
• Federation
  Federation

  noun

  the federation of the Australian colonies in 1901

federation

American  

[fed-uh-rey-shuhn] / ˌfɛd əˈreɪ ʃən /

noun

federations plural

1. the act of federating or uniting in a league.

2. the formation of a political unity, with a central government, by a number of separate states, each of which retains control of its own internal affairs.

3. a league or confederacy.

4. a federated body formed by a number of nations, states, societies, unions, etc., each retaining control of its own internal affairs.

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federation ¹ British  

/ ˌfɛdəˈreɪʃən /

noun

1. the act of federating

2. the union of several provinces, states, etc, to form a federal union

3. a political unit formed in such a way

4. any league, alliance, or confederacy

5. a union of several parties, groups, etc

6. any association or union for common action

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Federation ² British  

/ ˌfɛdəˈreɪʃən /

noun

1. the federation of the Australian colonies in 1901

2. a style of domestic architecture of that period, characterized by red brick, terracotta roof tiles, sinuous curves, and heavy window frames

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Other Word Forms

Derived Forms

• interfederation
  noun
• refederation
  noun
• profederation
  adjective

Inflected Forms

Nouns

• federations
  plural

Etymology

Origin of federation

1715–25; < Late Latin foederātiōn- (stem of foederātiō ) a leaguing. See federate, -ion

Explanation

A federation is an organization made up of smaller groups, parties, or states. The United States is a federation; the states all fall under the same federal government. The word federation may be most familiar as part of the name of an organization — for example, the International Tennis Federation, the American Advertising Federation, or the National Wild Turkey Federation. If you follow World Cup soccer, you may be interested to learn that the acronym FIFA stands for Fédération Internationale de Football Association. Although the groups within a federation are united around a common goal or ideology, they usually like to keep some control at the local level as well.

Example Sentences

The results of this were put before a committee, that included trading standards officers, and it was decided to expel the company from the federation.

From BBC • Jun. 28, 2026

Before leaving Sunday, the Iranian soccer federation and forward Ramin Rezaeian shared pictures of the team’s note of appreciation.

From Los Angeles Times • Jun. 22, 2026

But the Iranian federation said its request was turned down.

From Barron's • Jun. 19, 2026

Crossing the 10 million threshold would have forced Bern to terminate its free movement of persons agreement with the EU, a move that business federation Economiesuisse warned would trigger labor shortages and retaliatory tariffs.

From The Wall Street Journal • Jun. 14, 2026

The federation president gave Bobby a deed for more than an acre of land in Elista, his capital city.

From "Endgame" by Frank Brady

Related Words

• association
• league
• union