Caution vs Fire in the hole
When to use each in English, with meaning, register, and examples.
Caution
Top 2,000 (common)C1noun
Fire in the hole
SlangBeyond 10,000 (less common)
Most formal: CautionMost common: Caution
| Caution | Fire in the hole | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈkɔːʃn/"]/🇺🇸 /["/ˈkɔːʃn/"]/ | 🇬🇧 //faɪə(r) ɪn ðə həʊl//🇺🇸 //faɪər ɪn ðə hoʊl// |
| Meaning | Be careful. | Warning that something explosive is about to happen. |
| Example | Caution is advised when driving in heavy rain. | The soldier yelled, 'Fire in the hole!' before tossing the grenade. |
| Register | Neutral | Slang |
| How common | Top 2,000 (common) | Beyond 10,000 (less common) |
| CEFR level | C1 | - |
| Part of speech | 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 | shout fire in the hole, announce fire in the hole, ready for fire in the hole |
| Antonyms | carelessness, recklessness | - |
| 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'. | Used in formal contexts where it sounds out of place., Confused with actual firefighting terms., Misused as a general expression without danger. |
| 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. | Used informally, often in military contexts or when joking about throwing something dangerous. Not for formal situations. |
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Frequently asked questions: Caution vs Fire in the hole
What's the difference between Caution and Fire in the hole?
Caution: Be careful. Fire in the hole: Warning that something explosive is about to happen.
Which is more formal: Caution and Fire in the hole?
Caution is the most formal of these.
Which is more common: Caution and Fire in the hole?
Caution is the most common in everyday English.
Can you show an example of each?
Caution: Caution is advised when driving in heavy rain. Fire in the hole: The soldier yelled, 'Fire in the hole!' before tossing the grenade.
Can I use Caution and Fire in the hole interchangeably?
Not always. Caution and Fire in the hole 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.