Hypothesis vs Theory
When to use each in English, with meaning, register, and examples.
| Hypothesis | Theory | |
|---|---|---|
| Meaning | An idea or guess that can be tested. | An idea or explanation that tries to explain something. |
| Register | formal | - |
| CEFR level | B2 | B1 |
| Part of speech | noun | noun |
| Usage notes | Used mainly in academic and scientific contexts. Avoid using it in everyday conversation as it's too technical for casual discussions. | Used in academic and everyday contexts. Avoid in casual conversations unless discussing ideas or concepts. |
Frequently asked questions: Hypothesis vs Theory
What's the difference between "Hypothesis" and "Theory"?
"Hypothesis" means: An idea or guess that can be tested. "Theory" means: An idea or explanation that tries to explain something.
When should I use "Hypothesis" and "Theory"?
"Hypothesis" is formal.
Are "Hypothesis" and "Theory" the same CEFR level?
"Hypothesis" is at B2, "Theory" is at B1 on the CEFR scale.