The following is a list of terms specific to anarchists. Anarchism is a political and social movement which advocates voluntary association in opposition to authoritarianism and hierarchy. A The negation of rule or "government by none". While "anarchy" refers to the absence of a hierarchical society-organizing power principle, "acracy" refers to the absence of coercion; the condition of acracy is one of voluntary order. Derived from the Greek α- [no] and κρατία [system of government]. A form of organic organization according to which different parts of an organization are temporarily assembled to meet the requirements of that particular point in time. A small non-hierarchical collective of activists who collaborate on direct action via consensus decision-making. Coined by Ernst Jünger, this refers to the ruler (i.e. individual) in a state of anarchy analogous to the monarch in a state of monarchy, a conception influenced by Max Stirner's notion of the sovereign individual. A form of anarchism which does not declare affiliation with any specify subtype of anarchism (as may be suffixed to anarcho- or anarcha-), instead positioning itself as pluralistic, tolerant of all anarchist schools of thought. Derived from the Ancient Greek ἀν (without) + ἄρχειν (to rule) "without archons," "without rulers". Social disorder and civil war in an absence of government, used to separate anarchy as in social order and absence of government. Clipping of anarcho-socialism and/or anarcho-socialist used in informal discourse, particularly in blogs or other internet forums. A library which is not organised hierarchically and that has no catalogue. The concept is influenced by the ideas of the Situationists. A set of radical left-wing political movements in Western Europe which emerged in the late 20th century. A Greek word meaning "ruler"; the absence of archons and archy (rule) defines a state of anarchy. Derived from the Ancient Greek άρχων, pl. άρχοντες. B The "two red years" of political agitation, strikes and land occupation by Italian workers in 1919 and 1920. A political philosophy primarily of African-Americans, opposed to what it sees as the oppression of people of colour by the white ruling class through the power of the state. An affinity group, or cluster of affinity groups that assembles during protests, demonstrations, or other forms of direct action. Black blocs are noted for the distinctive all-black clothing worn by members to conceal their identity and for their intentional defiance of state property law. A distinctively French form of