partisan

¹ American  

[pahr-tuh-zuhn, -suhn, pahr-tuh-zan] / ˈpɑr tə zən, -sən, ˌpɑr təˈzæn /

Sometimes partizan

noun

1. 

   an adherent or supporter of a person, group, party, or cause, especially a person who shows a biased, emotional allegiance.

   Antonyms:

   opponent

2. Military. a member of a party of light or irregular troops engaged in harassing an enemy, especially a member of a guerrilla band engaged in fighting or sabotage against an occupying army.

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adjective

1. of, relating to, or characteristic of partisans; partial to a specific party, person, etc..

   partisan politics.

   Synonyms:

   prejudiced, biased

2. of, relating to, or carried on by military partisans or guerrillas.

partisan ² American  

[pahr-tuh-zuhn, -suhn] / ˈpɑr tə zən, -sən /

Also partizan

noun

1. a shafted weapon of the 16th and 17th centuries, having as a head a long spear blade with a pair of curved lobes at the base.

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partisan ¹ British  

/ ˈpɑːtɪˌzæn, ˌpɑːtɪˈzæn /

noun

1. an adherent or devotee of a cause, party, etc

2. 1. a member of an armed resistance group within occupied territory, esp in Italy or the Balkans in World War II

   2. ( as modifier )

      partisan forces

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adjective

1. of, relating to, or characteristic of a partisan

2. relating to or excessively devoted to one party, faction, etc; one-sided

   partisan control

partisan ² British  

/ ˈpɑːtɪzən /

noun

1. a spear or pike with two opposing axe blades or spikes

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Synonym Usage

See follower.

Other Word Forms

• partisanry
  noun
• partisanship
  noun

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Etymology

Origin of partisan¹

First recorded in 1545–55; from Middle French, from Upper Italian parteźan (Tuscan partigiano ), equivalent to part(e) “faction, part” ( see part) + -eźan (from unattested Vulgar Latin -ēs- adjective suffix of place ( see -ese) + Latin -iānus adjective suffix ( see -ian)

Origin of partisan²

1550–60; < Middle French partizane < Upper Italian parteźana, probably by ellipsis from (unattested) arma parteźana “weapon borne by members of a faction”; see partisan ¹

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Explanation

If something is prejudicial towards a particular point of view, you can call it partisan. You'll often hear about partisan politics in the U.S. — since politicians seem to be completely devoted to the agendas of their own parties. Partisan can be used to describe rabid supporters of any person or activity. In American English, however, it is most often used to refer to politics and the American two-party system of Democrats and Republicans. A bill introduced may have partisan support from the party that introduced the bill, or — more rarely it seems to American voters — the bill may even have bipartisan support. The prefix bi is added to show the support from both parties.

Example Sentences

See Examples For:

partisan

Dahlia Lithwick: Justice Kagan is almost the most careful of all the sitting justices not to say anything polemical, or partisan, or inflammatory.

From Slate ● Oct. 26, 2026

Even the most partisan of England fans would have wished him well.

From BBC ● Oct. 9, 2026

Like Cook, he traffics in clear-eyed, dispassionate analysis, not partisan wish-casting or political spin.

From Los Angeles Times ● Oct. 4, 2026

“My service has spanned both Republican and Democratic administrations. I am not a politician, and I have no partisan loyalties,” he said.

From Salon ● Oct. 2, 2026

The games were often exciting to watch—sometimes even a few officers would attend—but also nervous-making, as the crowds that gathered for matches between popular teams were partisan and players would sometimes get into fights.

From "Newjack: Guarding Sing Sing" by Ted Conover

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Related Words

• backer
• defender
• devotee
• follower
• stalwart
• supporter
• sympathizer
• zealot

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