Cool MateCause vs Reason
When to use each in English, with meaning, register, and examples.
Cause
Top 1,000 (very common)A2noun
Reason
Top 1,000 (very common)A1noun
| Cause | Reason | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/kɔːz/"]/🇺🇸 /["/kɔːz/"]/ | 🇬🇧 /["/ˈriːzn/"]/🇺🇸 /["/ˈriːzn/"]/ |
| Meaning | The reason something happens. | An explanation or cause for something. |
| Example | The cause of the accident was a flat tire. | The reason I am late is because of traffic. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | A2 | A1 |
| Part of speech | noun | noun |
| Collocations | real, root, true, determine, discover, find, be, lie in something, remain, cause of, cause and effect, the cause of death, due to natural causes, good, great, real, have, find, give (somebody), cause for, cause for concern, with good cause, without good cause, deserving, good, just, advance, champion, embrace, for the cause of, in the cause of, in a/the cause, (all) for a good cause, (all) in a good cause | cogent, good, sound, be aware of, see, have, by reason of, for a/the reason, for reason of, all the more reason, all sorts of reasons, every reason, cogent, good, sound, be aware of, see, have, by reason of, for a/the reason, for reason of, all the more reason, all sorts of reasons, every reason, human, lose, be open to, listen to, beyond reason, within reason, an appeal to reason, faculty of reason, sense of reason, human, lose, be open to, listen to, beyond reason, within reason, an appeal to reason, faculty of reason, sense of reason |
| Antonyms | effect, result | cause, consequence |
| Common mistakes | Confusing 'cause' with 'because' in sentences., Using 'caused' incorrectly when the present form 'cause' is needed., Incorrectly using 'cause' as a noun instead of a verb. | Confused with 'rationale' — 'reason' is broader., Using 'reason' without 'for' — remember to include it when explaining cause., Mispronouncing as 'ree-zen' instead of 'ree-zon'. |
| Usage notes | Use 'cause' in standard writing and conversation. In formal contexts, you might use 'cause' less frequently, opting for 'cause' instead. Avoid using it in very casual or children's language. | Used in both formal and informal contexts. In formal writing, it often appears in discussions and academic papers. In conversational settings, it's common to ask for someone's reason behind their choices. |
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Frequently asked questions: Cause vs Reason
What's the difference between Cause and Reason?
Cause: The reason something happens. Reason: An explanation or cause for something.
Are Cause and Reason the same CEFR level?
Cause: A2, Reason: A1 on the CEFR scale.
Can I use Cause and Reason interchangeably?
Not always. Cause and Reason are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.