Dictionary.com
Thesaurus.com
Synonyms

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.


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. of or relating to the Federalist party or Federalism

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

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

    2. a Federalist

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a supporter of federal union or federation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

Explanation

Federal refers to the national government. The voting age is determined by the federal government while the driving age is decided on a state by state basis. Before the Constitution was ratified, the United States was a loose confederation of states, with no real federal government. The Constitution created a stronger federal government but to this day, there is a conflict between those who want power to go to the states and those who support federal control. States don't seem to mind federal subsidies though.

Keep Reading on Vocabulary.com

Vocabulary lists containing federal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He complained about wages and compared himself to Mangione, federal prosecutors said.

From The Wall Street Journal • Apr. 16, 2026

At home, the federal government is asking consumers to use less fuel while some state governments have made public transport free temporarily to encourage motorists to leave their car at home.

From The Wall Street Journal • Apr. 16, 2026

Only 1.2 million, or about a quarter, of them qualify for the $1,000 federal seed contribution for eligible children.

From Barron's • Apr. 15, 2026

The original lawsuit, led by a cadre of interested parties including the federal government, 39 states and the District of Columbia, dates back to 2024.

From Los Angeles Times • Apr. 15, 2026

This law made it a federal offense for anyone to assist a runaway.

From "In the Shadow of Liberty" by Kenneth C. Davis