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Revealed preference
Revealed preference is the method of inferring a consumer's preferences from observed choices under known budget constraints rather than stated reports, introduced by Paul Samuelson in 1938.
Reveille
Reveille is the dawn bugle or drum call that wakes military personnel and opens the military day, from French reveiller. Distinguished from the shorter Rouse, the evening Last Post, and the US flag-raising ceremony.
Revelation
Revelation, or divine revelation, is in theology the disclosure of God or divine truth to human beings, distinguished as general revelation, available to all, and special revelation to a limited group.
Revelstoke Capital Partners
Revelstoke Capital Partners is a Denver, Colorado private equity firm founded in 2013 by Simon Bachleda that invests in healthcare services, healthcare technology, and health and wellness companies.
Revenant
Revenant, from French revenir (to return), is the returning dead of European folklore: a ghost or reanimated corpse recorded as fact in medieval chronicles, ancestor of the vampire.
Revenge
Revenge, or vengeance, is motivated retaliation after a perceived harm, distinguished from self-defense and unsolicited aggression. Research covers its evolutionary and cultural origins, prevalence in violence (42% of NYC murders), hedonic paradox, and relationship contexts.
Revenge porn
Revenge porn, also called non-consensual pornography or NCII, is the nonconsensual distribution of intimate images, part of image-based sexual abuse; distinguished by motive from general NCII and now criminalized by the US Take It Down Act and UK Online Safety Act.
Revenue
Revenue, also called sales revenue, is the income a business earns from selling goods or services, recorded when earned under accrual accounting rather than when cash arrives.
Revenue Act of 1862
The Revenue Act of 1862 was a US federal law signed by Lincoln imposing the nation's first federal income tax and creating the Bureau of Internal Revenue.
Revenue Act of 1964
The Revenue Act of 1964 is a US law signed by Lyndon Johnson that cut income taxes by $11.5 billion, the largest cut to that date.
Revenue Commission (Duzhi shi)
The Revenue Commission (度支使) was a mid-Tang Chinese fiscal office planning annual state expenditure and moving tax goods, one of the Three Treasuries alongside salt-and-iron.
Revenue Laws Papyrus
The Revenue Laws Papyrus (P.Rev.) is a Greek papyrus from Ptolemaic Egypt, dated to 259/8 BC, compiling royal ordinances on taxation, tax farming, and the oil monopoly.
Revenue recognition
Revenue recognition, also called the realization concept, is the accounting principle determining when a company reports revenue, governed since 2014 by the converged standards IFRS 15 and ASC 606.
Revere Franklin Weidner
Revere Franklin Weidner (1851–1915) was an American Lutheran theologian who taught dogmatics, exegesis, and Hebrew at the Augustana and Chicago seminaries and wrote an eight-volume dogmatic theology later widely reissued.
Reverence Capital Partners (private equity firm)
Reverence Capital Partners is a New York-based private investment firm founded in 2013 by Milton Berlinski, Peter Aberg, and Alexander Chulack that invests in middle-market financial services businesses.
Reverend Ike
Reverend Ike, born Frederick J. Eikerenkoetter II, was an American clergyman who preached a prosperity gospel to a national radio and television audience from New York.
Reversal learning
Reversal learning is a behavioral paradigm in which a subject learns that one cue is rewarded before the contingencies reverse, measuring cognitive flexibility across species.
Reverse acquisition
A reverse acquisition is a business combination in which the legal acquirer is identified as the accounting acquiree, under IFRS 3 and ASC 805, often called a reverse merger.
Reverse auction
A reverse auction is a procurement method in which suppliers bid prices downward in real time for a buyer's contract, typically saving 10 to 20 percent.
Reverse correlation
Reverse correlation is a psychophysical method in which observers classify noisy stimuli, and averaging these choices yields a classification image of the internal representation used.
Reverse Course (逆コース)
Reverse Course (逆コース) is the 1947–1950 shift in US occupation policy in Japan from demilitarization and democratization to economic recovery and anti-communism, engineered largely by George F. Kennan, with the term coined by Japanese critics in the mid-1950s.
Reverse mortgage
A reverse mortgage is a loan against home equity that pays cash to an older homeowner with no monthly repayment; the balance grows until death, sale, or move-out.
Reverse psychology
Reverse psychology, formally strategic self-anticonformity, is a social influence tactic advocating the opposite of what one wants; it works through Brehm's psychological reactance, whose message triggers and persuasion effects are quantified by the 2025 Li and Shi meta-analysis.
Reverse racism
Reverse racism: alleged prejudice or discrimination against majority or historically dominant groups, especially white people, tied to affirmative action and DEI debates; distinct from the legal term reverse discrimination and contested over whether racism requires power.
Reversed glottal stop
The reversed glottal stop is the IPA symbol ʕ, a glottal stop turned to open leftward, which transcribes the voiced pharyngeal fricative, the Arabic sound ʿayn.
ReversingLabs
ReversingLabs is a software supply chain security and malware analysis company in Cambridge, Massachusetts, whose Spectra Assure platform detects malware in software binaries without source code.
Review Board
Review Board is an open source, web-based code and document review tool, first developed in 2006, written in Python and JavaScript, and distributed under the MIT license.
Revillagigedo
Juan Vicente de Güemes Pacheco de Padilla, conde de Revillagigedo, was a Spanish colonial administrator who served as viceroy of New Spain from 1789 to 1794, renewing Mexico City.
Revilo P. Oliver
Revilo P. Oliver (1908-1994) was a University of Illinois classics professor and classical philologist who co-founded the John Birch Society, wrote "Marxmanship in Dallas," and became a leading intellectual figure of American white nationalism.
ReViral
ReViral was a clinical-stage biopharmaceutical company in London developing antivirals against respiratory syncytial virus (RSV); Pfizer acquired it in 2022 for up to $525 million.