theory

/ˈθɪəri/

nounthe · o · ry

Think: THE + ORY — “THE” story explains an idea; a THE-ory is an explanation.

Yes, it's theory. Watch the vowel order: it’s **e-o** in the middle (th**e** + **o**ry), not **eo** or **oy**.

Definitions

  1. nounan idea or set of ideas meant to explain something, especially based on evidence and reasoning
  2. nouna general principle or set of rules that guides a subject or practice (such as music theory)

Examples

  • “Her theory about why the plants were dying turned out to be correct.”
  • “In science class, we learned the theory of plate tectonics.”
  • “He studied music theory to understand chords and harmony better.”

Synonyms

ideaexplanationhypothesisconceptprinciple

Antonyms

fact

Translations

ES teoríaPT teoriaFR théorie

Common misspellings

thearytheorietheroytheorrytheoryetheory

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