federal

American  

[fed-er-uhl] / ˈfɛd ər əl /

adjective

1. pertaining to or of the nature of a union of states under a central government distinct from the individual governments of the separate states, as in

2. of, relating to, or noting such a central government.

   federal offices.

3. (initial capital letter)

   1. of or relating to the Federalists or to the Federalist party.

   2. supporting the principles of the Federalist party.

   3. (in the Civil War) pertaining to or supporting the Union government.

   4. relating to or adhering to the support of the Constitution.

4. (initial capital letter) pertaining to or designating the styles of the decorative arts and architecture current in the U.S. from about 1780 to about 1830.

5. of or relating to a compact or a league, especially a league between nations or states.

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noun

1. an advocate of federation or federalism.

2. (initial capital letter)

   1. a Federalist.

   2. an adherent of the Union government during the Civil War; Unionist.

   3. a soldier in the Federal army.

Federal ¹ British  

/ ˈfɛdərəl /

adjective

1. 1. of or relating to the Federalist party or Federalism

   2. characteristic of or supporting the Union government during the American Civil War

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noun

1. 1. a supporter of the Union government during the American Civil War

   2. a Federalist

federal ² British  

/ ˈfɛdərəl /

adjective

1. of or relating to a form of government or a country in which power is divided between one central and several regional governments

2. of or relating to a treaty between provinces, states, etc, that establishes a political unit in which power is so divided

3. of or relating to the central government of a federation

4. of or relating to any union or association of parties or groups that retain some autonomy

5. (of a university) comprised of relatively independent colleges

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noun

1. a supporter of federal union or federation

Other Word Forms

• federally adverb
• federalness noun
• nonfederal adjective
• quasi-federal adjective
• quasi-federally adverb

Etymology

Origin of federal

First recorded in 16205–30; earlier foederal, from Latin foeder- (stem of foedus ) “formal agreement, treaty, league” + -al ¹

Example Sentences

This week, L.A. federal prosecutors were in two separate trials involving a charge of assault on a federal officer tied to immigration protests.

From Los Angeles Times • Apr. 4, 2026

From 1961 to 1972, Cameroon operated under a federal system which respected the autonomy of the francophone and anglophone parts of the country.

From BBC • Apr. 4, 2026

Today, almost all U.S. households have at least one microwave, according to the most recent federal data.

From The Wall Street Journal • Apr. 4, 2026

In 2023, they paid $90 billion in federal, state and local taxes, and held almost $300 billion in spending power.

From Salon • Apr. 4, 2026

The major business of the evening, in all likelihood, was an agreement to recalculate Virginia's debt and corresponding share of the enlarged federal debt.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis

Related Words

• civil
• communal
• domestic
• ethnic
• governmental
• internal
• interstate
• nationwide
• public
• social