teoria.
theory (a coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed, or which sets out the laws and principles of something known or observed; a hypothesis confirmed by observation, experiment etc)
Meaning & usage
theory (a coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed, or which sets out the laws and principles of something known or observed; a hypothesis confirmed by observation, experiment etc)
theory (someone's personal view on something)
theory (branch of a specific scientific discipline that deals with the basic concepts and principles of that discipline)
theory ((informal) A hypothesis or conjecture)
theory (the underlying principles or methods of a given technical skill, art etc., as opposed to its practice)
sending of state-ambassadors
Where this word comes from
Etymology tree Proto-Hellenic *tʰáwā Ancient Greek θέᾱ (théā) Proto-Indo-European *wer-der. Proto-Indo-European *h₃ekʷ-der. Proto-Indo-European *weyd-der. Ancient Greek ὁράω (horáō) Ancient Greek *θεᾱ-(ϝ)ορός, *θεη-(ϝ)ορός (*theā-(w)orós, *theē-(w)orós) Ancient Greek θεωρός (theōrós) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Ancient Greek θεωρία (theōría)bor. Latin theoriabor. French théoriebor. Polish teoria Borrowed from French théorie. First attested in 1765.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.