partisan >> ˈpɑːtɪzan
Definition: [noun] a strong supporter of a party, cause, or person.
Example: partisans of the exiled Stuarts
Definition: [noun] a member of an armed group formed to fight secretly against an occupying force, in particular one operating in German-occupied Yugoslavia, Italy, and parts of eastern Europe in the Second World War.
Example: the partisans opened fire from the woods
Definition: [adjective] prejudiced in favour of a particular cause.
Example: newspapers have become increasingly partisan