Cool MateCaution vs Warning
When to use each in English, with meaning, register, and examples.
Caution
Top 2,000 (common)C1noun
Warning
Top 1,000 (very common)B1noun
Most common: Warning
| Caution | Warning | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈkɔːʃn/"]/🇺🇸 /["/ˈkɔːʃn/"]/ | 🇬🇧 /["/ˈwɔːnɪŋ/"]/🇺🇸 /["/ˈwɔːrnɪŋ/"]/ |
| Meaning | Be careful. | A message telling someone about a possible problem or danger. |
| Example | Caution is advised when driving in heavy rain. | The warning on the label advised against using the product around children. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) |
| CEFR level | C1 | B1 |
| Part of speech | noun | noun |
| Collocations | considerable, extra, extreme, exercise, take, use, with caution, err on the side of caution, the need for caution, sound a note of caution, formal, get off with, receive, give somebody | dire, grim, ominous, give (somebody), issue, post, come, sound, label, notice, sign, in warning, without warning, warning about, let that/this be a warning (to you), a word of warning, dire, grim, ominous, give (somebody), issue, post, come, sound, label, notice, sign, in warning, without warning, warning about, let that/this be a warning (to you), a word of warning |
| Antonyms | carelessness, recklessness | safety, assurance, reassurance |
| Common mistakes | Confused with 'cause' — learners may use 'caution' incorrectly as a reason., Using 'caution' as a verb — 'caution' is primarily a noun., Incorrectly spelling 'caution' as 'cautiont'. | Confused with 'warn' — remember 'warning' is a noun., Using it in a context that doesn't involve danger or caution., Misplacing it in a sentence, leading to unclear meaning. |
| Usage notes | Use 'caution' when advising someone to be careful. It is appropriate in both spoken and written contexts, but can sound slightly formal in casual conversations. | Use 'warning' when you want to alert someone about something potentially harmful. It's suitable for both spoken and written communication, but avoid using it in overly casual settings. |
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Frequently asked questions: Caution vs Warning
What's the difference between Caution and Warning?
Caution: Be careful. Warning: A message telling someone about a possible problem or danger.
Which is more common: Caution and Warning?
Warning is the most common in everyday English.
Which is more advanced: Caution and Warning?
Caution is the highest level, at C1, on the CEFR scale.
Are Caution and Warning the same CEFR level?
Caution: C1, Warning: B1 on the CEFR scale.
What part of speech are Caution and Warning?
Caution: noun, Warning: noun.
Can you show an example of each?
Caution: Caution is advised when driving in heavy rain. Warning: The warning on the label advised against using the product around children.
Can I use Caution and Warning interchangeably?
Not always. Caution and Warning 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.