theory

AU, UK /ˈθɪə.ɹi/ · US /ˈθɪ.ɹi/

Etymology Borrowed from Middle French théorie, a learned borrowing from Late Latin theōria, borrowed from Ancient Greek θεωρία (theōría), from θεωρός (theōrós, “spectator”) + -ῐ́ᾱ (-ĭ́ā).

Derived terms

intertheory, in theory, intratheory, teletheory, theoretic, theorist, theorycel, theorycraft, theoryhead, theoryism, theory-laden, theoryless, time-preference theory of interest

Related terms

theorem, theoretical, theorise, theorize, axiom, postulate, proposition

Hyponyms

282 terms

AAK theory, AAK-theory, abrupt appearance theory, abstinence theory, abstract analytic number theory, acoustic theory, action theory, activity theory, additive number theory, Ahlfors theory, algebraic graph theory, algebraic K-theory, algebraic number theory, algorithmic information theory, algorithmic number theory, alive internet theory, analytic number theory, antenna theory, approximation theory, aquatic ape theory, arbitrage pricing theory, AR theory, assemblage theory, atomic theory, attainable region theory, attribution theory, auction theory, Auslander-Reiten theory, auteur theory, autotheory, BCS theory, bifurcation theory, binary theory, Bohr theory, bow-wow theory, bowwow theory, broken windows theory, broken window theory, burnt toast theory, cable theory, catastrophe theory, category theory, cell theory, chaos theory, character theory, Chern-Simons theory, choice theory, circuit theory, classical field theory, cobweb theory, cockroach theory, coding theory, coincidence theory, collision theory, communication accommodation theory, communication theory, complexity theory, computability theory, computational complexity theory, computational number theory, computation theory, conspiracy theory, continuum theory, control theory, coorbit theory, cosmological perturbation theory, counterpart theory, countertheory, critical race theory, critical theory, crystal field theory, cuckoo theory, cultivation theory, cybertheory, dead internet theory, dead Internet theory, de Broglie-Bohm theory, Debye-Hückel theory, decision theory, dependency theory, ding-dong theory, divine command theory, DLVO theory, domain theory, domino theory, Donaldson-Thomas theory, Dow theory, dual-coding theory, dynamo theory, ecotheory, e-learning theory, emission theory, endosymbiotic theory, epitheory, ergodic theory, estimation theory, ethnotheory, evolutionary theory, extreme value theory, fast leg theory, field theory, fish-hook theory, fishhook theory, flypaper theory, Fredholm theory, fringe theory, Galois theory, game theory, gap theory, gauge theory, gender theory, germ theory, germ theory of disease, giant impact theory, global workspace theory, grand theory, grand unification theory, grand unified theory, graph theory, greater fool theory, great man theory, great replacement theory, Green Lantern theory, grounded theory, group theory, Heim theory, hemline theory, Hodge theory, homotopy theory, horseshoe theory, iceberg theory, imbibition theory, information theory, integral theory, inter-universal Teichmüller theory, invariant theory, ironic process theory, James-Lange theory, Kaluza-Klein theory, kinetic theory of gases, Kirkwood-Buff solution theory, knot theory, K-theory, labor theory of value, labor value theory, labor-value theory, labour theory of value, labour-value theory, labour value theory, lattice theory, legal theory, leg theory, lesbian dance theory, ligand field theory, literary theory, living internet theory, locale theory, LQG theory, lunar theory, macrotheory, madman theory, meaning-text theory, measure theory, metatheory, microtheory, minitheory, mirror theory, model theory, module theory, molecular orbital theory, Morse theory, motor theory, M-theory, music theory, musical theory, Nevanlinna theory, nontheory, novelty theory, nub theory, nudge theory, number theory, operator theory, opponent-process theory, optimality theory, orange peel theory, Out of India theory, particle theory, pattern theory, Peccei-Quinn theory, perceptual control theory, percolation theory, perturbation theory, phlogiston theory, pooh-pooh theory, potential theory, probability theory, proof theory, prototype theory, psychotheory, quantity theory of money, quantum field theory, quantum information theory, quantum theory, quark theory, queer theory, queueing theory, queuing theory, r/K selection theory, Ramsey theory, rational choice theory, recapitulation theory, recursion theory, Regge theory, renewal theory, replacement theory, representation theory, rimland theory, ring theory, ruin theory, Sahara pump theory, sandwich theory, scheme theory, screw theory, seduction theory, set point theory, set theory, sheaf theory, sieve theory, signal theory, situation theory, size theory, Skopos theory, social theory, spectral theory, spoon theory, standard theory, standpoint theory, steady state theory, stoned ape theory, stone tape theory, Strauss-Howe generational theory, string theory, Sturm-Liouville theory, subtheory, supposition theory, swollen assets theory, synthetic theory, systems theory, ta-ta theory, terrain theory, theory of abrupt appearance, theory of everything, theory of games, theory of gravity, theory of mind, theory of music, theory of musical equilibration, theory of relativity, theory of truth, theory of value, Theory X, Theory Y, thing theory, toy theory, transcendental number theory, type theory, unexpected red theory, value theory, veneer theory, virtue theory, vortex theory, wave theory, Wheeler-Feynman absorber theory, white inflation theory, white replacement theory, X-bar theory, X′ theory, Yang-Mills theory, yo-heave-ho theory, yo-he-ho theory, Zermelo-Fraenk set theory, Zermelo set theory

Holonyms

formal system

Meronyms

axioms