Cool MateFortress vs Keep
When to use each in English, with meaning, register, and examples.
Fortress
Top 5,000 (fairly common)
Keep
Top 1,000 (very common)A1verb
Most common: Keep
| Fortress | Keep | |
|---|---|---|
| Pronunciation | 🇬🇧 //ˈfɔːtrəs//🇺🇸 //ˈfɔrtərəs// | 🇬🇧 /["/kiːp/","/kiːps/","/kept/","/ˈkiːpɪŋ/"]/🇺🇸 /["/kiːp/","/kiːps/","/kept/","/ˈkiːpɪŋ/"]/ |
| Meaning | A strong building used for protection. | To have or hold something in your possession. |
| Example | The ancient fortress stood tall against the test of time. | Please keep your room clean. |
| Register | Neutral | Neutral |
| How common | Top 5,000 (fairly common) | Top 1,000 (very common) |
| CEFR level | - | A1 |
| Part of speech | verb | |
| Collocations | military fortress, ancient fortress, strategic fortress, fortress walls, defensive fortress | well |
| Antonyms | vulnerability, weakness | discard, release, abandon |
| Common mistakes | Confused with 'fort' - a fortress is typically larger., Using 'fortress' in non-security contexts like comfort or safety., Incorrectly pluralizing 'fortress' to 'fortresses' in all contexts. | Confusing 'keep' with 'keep on' which suggests continuation., Using 'keep' without an object (e.g. saying 'I keep' instead of 'I keep it')., Incorrectly using 'kept' as a present tense. |
| Usage notes | Often used in contexts related to military, security, or historical structures. It may not be appropriate for casual conversations. | Use 'keep' when you want to indicate retaining something. It is suitable for both spoken and written contexts. Avoid using 'keep' in overly formal writing; alternatives like 'retain' may be better. |
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Frequently asked questions: Fortress vs Keep
What's the difference between Fortress and Keep?
Fortress: A strong building used for protection. Keep: To have or hold something in your possession.
Which is more common: Fortress and Keep?
Keep is the most common in everyday English.
Can you show an example of each?
Fortress: The ancient fortress stood tall against the test of time. Keep: Please keep your room clean.
Can I use Fortress and Keep interchangeably?
Not always. Fortress and Keep 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.