In politics, it is often used by far left-wing groups for an organized unit or political faction
Multi-tendency, when used in regards to a political organization, especially a left-wing or anarchist one, means that the organization recognizes or at least tolerates members who are affiliated with or identify with a variety of tendencies within the broad stance of the organization
International Socialist Tendency, an international grouping of unorthodox Trotskyist organisations based around the ideas of Tony Cliff, founder of the Socialist Workers Party (SWP) in Britain (not to be confused with the unrelated Socialist Workers Party in the United States)
Militant tendency, an entrist group within the British Labour Party based around the Militant newspaper that was first published in 1964. It described its politics as descended from Karl Marx, Friedrich Engels, Vladimir Lenin and Leon Trotsky
Pathfinder tendency, the unofficial name of a group of historically Trotskyist organizations that are politically and organizationally allied with the Socialist Workers Party of the United States and its perspective of solidarity with the Cuban Revolution and the Cuban Communist Party
Central tendency, a way of specifying - central value. In practical statistical analysis, the terms are often used before one has chosen even a preliminary form of analysis: thus an initial objective might be to "choose an appropriate measure of central tendency"