Keep Someone Posted: Meaning, Origin, Usage, and Examples
The phrase “keep someone posted” means to regularly update a person about new information, progress, or changes in a situation. It is commonly used in both personal and professional communication and carries the same meaning as “keep someone informed” or “keep someone updated.”
If you ask someone to keep you posted, you are requesting ongoing communication as new details become available.
The Origin of Keep Someone Posted
Origin of the Phrase “Keep Me Posted”
The idiom “keep me posted” has a practical and visual origin. Historically, important notices were nailed or pinned to wooden posts in town squares or other public gathering places. These posts displayed announcements, legal notices, business updates, or community information.
Whenever details changed, the paper notice would be replaced or updated. In other words, people were literally kept “posted” with current information.
Over time, this physical act of posting announcements evolved into the figurative expression we use today. Instead of paper on wooden posts, we now “post” updates through email, messaging apps, or digital platforms—but the core idea remains the same: providing timely updates.
Evolution into Modern Usage
Although there is no exact historical date for the origin of the phrase, it became widely accepted in everyday English as communication methods advanced. As societies moved from public notice boards to letters, telegrams, emails, and instant messaging, the meaning of “posted” shifted from physical posting to informational updating.
Today, the phrase functions purely as an idiom rather than a literal reference.
Why the Phrase Became Popular
Several factors contributed to the popularity of “keep someone posted”:
- It is concise and clear.
- It sounds conversational yet professional.
- It fits both spoken and written English.
- It applies to nearly any situation involving updates.
Because of its versatility, it remains widely used across business, education, media, and everyday conversation.
Formal vs Informal Usage
Is “I Will Keep You Posted” Formal?
The phrase “I will keep you posted” leans slightly toward informal communication, but it is widely accepted in professional settings.
You will commonly see it in:
- Workplace emails
- Team communications
- Client updates
- Project discussions
While it is not overly formal, it is still polite and appropriate in most contexts.
More Formal Alternatives
If you need a more formal tone—especially in academic, corporate, or legal communication—you may prefer alternatives such as:
- I will keep you informed.
- I will provide updates.
- I will notify you of any changes.
- I will update you as new information becomes available.
The choice ultimately depends on your audience and communication style.
Other Ways to Say Keep Someone Posted
English offers many synonyms that express the same meaning. Depending on tone and context, you can use:
- Keep me informed
- Keep me updated
- Let me know about any changes
- Keep me in the loop
- Update me as things progress
- Inform me of developments
- Share any new information
Each variation communicates a request for ongoing updates, but some sound more casual (“keep me in the loop”) while others sound more formal (“inform me of developments”).
When to Use Keep Someone Posted
In Professional Settings
The phrase works well in:
- Project management updates
- Business negotiations
- Publishing timelines
- Shipping or delivery tracking
- Conference planning
Example:
“Please keep me posted on the progress of the publishing project so I know if any adjustments need to be made.”
In Personal Conversations
It is equally common in casual situations:
- Job interviews
- Travel plans
- Family matters
- Event planning
Example:
“I’m eager to hear about how your job interview goes. Keep me posted.”
In Customer Service
Businesses frequently use this phrase to reassure customers.
Example:
“As soon as we receive more information about your shipment, we will keep you posted.”
Common Mistakes with Keep Someone Posted
Mistake 1: Assuming It Is Too Informal
Some people avoid using the phrase in professional emails, thinking it sounds too casual. In reality, it is widely accepted in business communication unless you require highly formal language.
Mistake 2: Using It Without Clear Context
Saying “keep me posted” without specifying what you want updates about can create confusion. Always clarify the subject.
Incorrect:
“Keep me posted.”
Clearer:
“Keep me posted on the contract approval status.”
Mistake 3: Overusing the Phrase
Repeating the phrase multiple times in a short email or document can make writing feel repetitive. Vary your language where appropriate.
Mistake 4: Misinterpreting the Meaning
The phrase does not mean “post on social media.” It refers to keeping someone updated about a specific matter.
Keep Someone Posted in Everyday Examples
In Emails
“Please keep me posted on any changes to the meeting schedule.”
In News Writing
“Officials promised to keep the public posted as more information becomes available.”
On Social Media
“Travel plans are still being finalized—I’ll keep you posted!”
In Formal Writing
“The department will keep stakeholders posted regarding policy revisions.”
In Business Communication
“We will keep you posted as soon as the shipment clears customs.”
Linguistic Analysis of the Phrase
From a grammatical perspective, “keep” functions as a causative verb, meaning to cause something to remain in a particular state. “Posted” acts as an adjective derived from the verb “post.”
The structure follows this pattern:
Keep + object + adjective/participle
Example:
Keep me informed.
Keep us updated.
Keep them posted.
This grammatical pattern explains why the phrase feels natural in English conversation.
Tone and Communication Impact
The phrase carries a cooperative tone. It suggests:
- Ongoing communication
- Transparency
- Professional courtesy
- Shared responsibility
When you tell someone “I’ll keep you posted,” you are offering reassurance that they will not be left without information.
In collaborative environments, this strengthens trust and clarity.
Cultural Relevance in Modern Communication
In today’s digital world, updates happen instantly. Ironically, the original idea of posting physical notices has transformed into:
- Email notifications
- Workplace messaging apps
- Project management dashboards
- Social media updates
Despite technological changes, the phrase remains intact and widely understood across English-speaking cultures.
Comparison Table: Keep Someone Posted vs Similar Phrases
| Phrase | Tone | Formality | Best Used In |
|---|---|---|---|
| Keep someone posted | Neutral | Semi-formal | Work and casual |
| Keep someone informed | Professional | Formal | Business, academic |
| Keep someone updated | Neutral | Semi-formal | Work, projects |
| Keep someone in the loop | Casual | Informal | Team settings |
| Notify someone | Direct | Formal | Legal, official |
Frequently Asked Questions
Is “keep someone posted” a real idiom?
Yes. It is a widely recognized English idiom meaning to provide ongoing updates.
Does it have a literal meaning?
Historically, yes. It originally referred to posting notices on public posts in town squares.
Can it be used in business emails?
Yes. It is commonly used in professional communication, although more formal alternatives may be chosen in highly official contexts.
Is it appropriate for academic writing?
In strict academic writing, more formal phrases like “inform” or “notify” are usually preferred.
Does it mean the same as “keep me updated”?
Yes. Both phrases are interchangeable in most contexts.
Can it be used globally?
Yes. The phrase is understood in both American and British English and across most English-speaking regions.
Conclusion
The phrase “keep someone posted” is a practical, flexible, and widely accepted idiom in modern English. Its origins trace back to physical notices pinned to public posts, but today it represents timely communication in both personal and professional settings.
Whether you use it in a workplace email, customer service response, or casual conversation, the meaning remains straightforward: provide updates as new information becomes available.
