A clash or disagreement, often violent, between two or more opposing groups or individuals. / An incompatibility, as of two things that cannot be simultaneously fulfilled.

plural of census

plural of Japanese marten

(Australia, derogatory, usually restricted to youths) A person, usually male, who is unpopular with their peers, unfashionable, socially awkward and/or introverted. / (derogatory) An English person.