noun / adjective

partisan

PAR-tuh-zun/pˈɑrtʌzʌn/

A devoted supporter of a party, cause, or side.

As a devoted partisan, she defends her party at every meeting.

A devoted white adult supporter waves a plain colored pennant among teammates.

Etymology

partisanItalianmember of a faction, partner

Partigiano named a member of a faction or a partner—someone belonging to one side. In English, this became a zealous supporter, especially one whose loyalty could cloud judgment.

In context

UMass Amherst16:15

as a partisan in the conflict, I was absolutely cheering my side on

"The Structures of Polarization" a panel discussion from the Polarization Symposium at UMass Amherst

More examples

Partisans of both candidates gather outside the debate hall.
He remains a passionate partisan of public education.
The committee puts partisan differences aside to approve the emergency funding.

Forms

partisan · partisans

partisanship noun — Strong, often biased support for one side.

Similar words

supporter: Broader term that does not imply intense or biased allegiance.
advocate: Emphasizes publicly arguing for a cause rather than taking sides.
loyalist: Emphasizes remaining faithful to an established leader, government, or organization.