Rule

Rule or ruling may refer to:

Human activity

 * The exercise of political or personal control by someone with authority or power
 * Business rule, a rule pertaining to the structure or behavior internal to a business
 * School rule, a rule that is part of school discipline
 * Sport rule, a rule that defines how a sport is played
 * Game rule, a rule that defines how a game is played
 * Morality, a rule or element of a moral code for guiding choices in human behavior
 * Norm (philosophy), a kind of sentence or a reason to act, feel or believe
 * Social norm, explicit or implicit rules used within society or by a group
 * Rule of thumb, a principle with broad application that is not intended to be strictly accurate or reliable for every situation
 * Unspoken rule, an assumed rule of human behavior that is not voiced or written down

Science

 * Ruler, or "rule"; a distance measuring device
 * Slide rule, a mechanical analog computer
 * Rule of inference or transformation rule, a term in logic for a function which takes premises and returns a conclusion
 * Phrase structure rule or rewrite rule, used in some theories of linguistics
 * "Rule X" elementary cellular automaton, where X is a number between 0-255 characterizing a specific model (e.g. Rule 110)
 * Phonological rule

Law and government

 * Advance tax ruling, a tool for conforming taxation arrangements
 * Court order, a decision by a court
 * Government
 * In rulemaking by the federal government of the United States, a regulation mandated by Congress, but written or expanded upon by the executive branch
 * Law, which may informally be called a "rule"
 * Military rule, governance by a military body
 * Monastic rule, a collection of precepts that guides the life of monks or nuns in a religious order
 * Procedural law, a ruleset governing the application of laws to cases
 * Rule of law, government based not on arbitrary decisions of officials but on laws

Geography

 * Rule, Arkansas
 * Rule, Texas

Literature

 * The Rules, bestselling self-help book
 * Rules (novel), 2007 Newbery Honor book by Cynthia Lord
 * "The Rulers", a science fiction short story by A. E. van Vogt
 * The Rule, a 2015 novel by Jack Colman (author)

Music

 * Ja Rule (born 1976), hip hop artist

Albums

 * R.U.L.E., by Ja Rule, 2004
 * Rule, by Anna Tsuchiya, 2010
 * Rules (album), by the Whitest Boy Alive, 2009
 * Rules, by First Blood, 2017
 * Rules!, by Manila Luzon, 2019

Songs

 * "Rule" (Nas song), 2001
 * "Rule"/"Sparkle", a double A-side by Ayumi Hamasaki, 2009
 * "Rule", by X Ambassadors from Orion, 2019
 * "Rules" (Doja Cat song), 2019
 * "Rules" (KMFDM song), 1996
 * "Rules", by Shakira from Laundry Service, 2001
 * "The Rules", by XO-IQ, featured in the television series Make It Pop

Other uses

 * Rule (surname)
 * The Rule (film), a 2014 American documentary
 * Ruler (film), a 2019 India Telugu-language film
 * Pushpa: The Rule, a 2024 Indian period action film
 * Rules: Pyaar Ka Superhit Formula, a 2003 Bollywood film
 * rule: a snippet of code which can perform email filtering
 * Rule (horse) (born 2007), American racehorse
 * Rules (restaurant), upscale English restaurant in London
 * Rules!, a 2014 iOS video game
 * "Rule #1" (Batwoman)
 * Rule (Bosnia and Herzegovina), political party
 * Royal University of Law and Economics (RULE), a university in Cambodia