Cool MateBrief vs I'll keep you posted
When to use each in English, with meaning, register, and examples.
Brief
Top 1,000 (very common)B2adjective
I'll keep you posted
InformalTop 2,000 (common)
Most formal: BriefMost common: Brief
| Brief | I'll keep you posted | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/briːf/"]/🇺🇸 /["/briːf/"]/ | 🇬🇧 //aɪl kiːp jʊ ˈpəʊstɪd//🇺🇸 //aɪl kip jʊ ˈpoʊstɪd// |
| Meaning | Short in time, length, or amount. | I'll let you know the latest news. |
| Example | The presentation was brief, lasting only fifteen minutes. | I'll keep you posted on the project's progress. |
| Register | Neutral | Informal |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | B2 | - |
| Part of speech | adjective | |
| Collocations | be, keep something, make something, extremely, fairly, very, be, keep something, make something, extremely, fairly, very | keep someone posted, keep you updated, keep me informed |
| Antonyms | long, extended, prolonged | - |
| Common mistakes | Confused with 'breif', a common misspelling., Using it in contexts that require more detail., Saying 'more brief' instead of 'briefer'. | Using it in formal emails where more formal language is required., Confusing it with 'keep in touch', which implies broader communication. |
| Usage notes | Use 'brief' when something is short or concise. It is appropriate for both written and spoken contexts but should be avoided in overly formal situations where detailed explanations are preferred. | Commonly used in casual conversations to indicate you will update someone on progress or news. Less appropriate in formal situations. |
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Frequently asked questions: Brief vs I'll keep you posted
What's the difference between Brief and I'll keep you posted?
Brief: Short in time, length, or amount. I'll keep you posted: I'll let you know the latest news.
Which is more formal: Brief and I'll keep you posted?
Brief is the most formal of these.
Which is more common: Brief and I'll keep you posted?
Brief is the most common in everyday English.
Can you show an example of each?
Brief: The presentation was brief, lasting only fifteen minutes. I'll keep you posted: I'll keep you posted on the project's progress.
Can I use Brief and I'll keep you posted interchangeably?
Not always. Brief and I'll keep you posted 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.