Choosing between Posible or Possible is easy once you understand the correct English spelling, word formation, and common spelling mistakes. If you have ever written “posible” instead of “possible,” you are not alone. This error often happens because English spelling does not always match pronunciation. The correct spelling is possible, with two s letters in the middle.
“Posible” is a misspelling and is not accepted as the standard spelling in modern English.The word possible is an important English adjective that means something can happen, exist, or be achieved. You can use it when discussing potential outcomes, feasible options, likely situations, or achievable goals. Understanding this distinction can improve your writing accuracy, grammar skills, vocabulary, and English communication.
It also helps you avoid spelling errors, typing mistakes, and common English mistakes in academic writing, professional communication, and everyday sentences.In this guide, you will learn the correct spelling, meaning, pronunciation, definition, usage, word origin, and example sentences for “possible.” You will also discover why “posible” is incorrect and how to remember the correct spelling.
Quick Answer: Is It Posible or Possible?
Possible is the correct English spelling.
Posible is not the standard spelling of the English word. If you’re writing an essay, email, article, report, social media post, or school assignment in English, use possible.
| Spelling | Correct in standard English? | Example |
| possible | ✅ Yes | Anything is possible with enough effort. |
| posible | ❌ No | Anything is posible with enough effort. |
The correct spelling contains two s’s:
P-O-S-S-I-B-L-E
The word means that something can happen, can be achieved, can exist, or might be true. Cambridge Dictionary lists both the “can be done or achieved” meaning and the “might or might not happen” meaning.
Correct Spelling Examples
Here are several natural examples using possible:
- Is it possible to change the reservation?
- We need to find the best possible solution.
- I’ll finish the report as soon as possible.
- Is it possible that she forgot the meeting?
- Anything is possible if you prepare properly.
- The team considered every possible explanation.
- Please arrive as early as possible.
- If possible, send me the documents today.
Notice that the spelling never changes to posible.
Why Is “Possible” the Correct Spelling?
The main spelling issue is simple: possible is spelled with a double s.
The word contains the sequence -ssible, not -sible. That gives us:
possible → p-o-s-s-i-b-l-e
A common mistake removes one of those letters:
posible → p-o-s-i-b-l-e ❌
Although the difference looks tiny, spelling conventions depend on established word forms rather than simply reproducing what a word sounds like.
That’s especially important with possible. English pronunciation doesn’t clearly announce every letter in the written word. The word is commonly pronounced approximately /ˈpɑː.sə.bəl/ in American English and /ˈpɒs.ə.bəl/ in British English. Cambridge lists these pronunciation differences while retaining the same spelling, possible, in both varieties.
Why Do People Write “Posible”?
Several factors can cause the mistake.
First, pronunciation can be misleading. The two s’s aren’t pronounced as two obvious sounds. Someone learning English may hear a single /s/ sound and assume that one s is enough.
Second, English spelling contains many inconsistent patterns. Learners can’t always predict spelling simply from pronunciation.
Third, posible resembles forms found in other languages. For example, Spanish uses posible, while English uses possible. That cross-language similarity can create confusion for multilingual writers.
Finally, typing quickly can cause repeated letters to disappear. This happens particularly often with words containing doubled consonants.
The solution is straightforward: memorize the standard English form as a complete word rather than relying on pronunciation alone.
The Origin and History of “Possible”
The spelling of possible makes more sense when you look at its history.
According to Etymonline, possible entered English in the mid-14th century through Old French possible and directly from Latin possibilis, meaning “that can be done.” The Latin form is connected with posse, meaning “to be able.”
This historical connection helps explain why English retained the ss in the modern spelling.
The basic development can be represented like this:
Latin possibilis
↓
Old French possible
↓
Middle English / English possible
↓
Modern English possible
The word originally centered on the idea of something that could be done or could exist. That core meaning remains remarkably stable today.
Modern dictionaries still define possible around two major ideas. Something may be achievable, or it may simply be uncertain but conceivable.
For example:
- It is possible to finish the work today.
→ The task can be completed. - It is possible that the train is late.
→ The train may or may not be late.
The spelling stayed consistent even though pronunciation and usage evolved over centuries.
British English vs. American English: Is the Spelling Different?
Here’s where the answer becomes especially useful for English learners:
British English and American English both spell the word “possible.”
There is no standard British spelling posible and no standard American spelling posible.
| Variety of English | Correct spelling |
| American English | possible |
| British English | possible |
| Canadian English | possible |
| Australian English | possible |
| Standard international English | possible |
Cambridge provides both British and American pronunciations for possible, but the written spelling remains possible.
This distinction matters because English does have genuine spelling differences between major varieties.
For instance:
- color → American English
- colour → British English
- center → American English
- centre → British English
But possible isn’t one of those words.
So if you’re writing for an American audience, use possible. If you’re writing for a British audience, use possible. There’s no need to change the spelling.
Which Spelling Should You Use?
Use possible whenever you’re writing standard English.
That applies to virtually every ordinary context:
- Academic assignments
- Business emails
- Professional reports
- Blog posts
- News writing
- Website content
- Social media
- Resumes
- Applications
- Personal correspondence
- Formal documents
- Everyday messages
If a spell-checker highlights posible, replace it with possible.
When “Possible” Is Appropriate
You can use possible to describe something that can happen:
A delay is possible because of the weather.
You can also use it for something that can be achieved:
It is possible to complete the project by Friday.
You can use it when discussing uncertainty:
It’s possible that the store will close early.
And you can use it to describe the maximum, minimum, best, or worst version of something:
We need the best possible outcome.
The word is flexible. That’s one reason it appears so frequently in everyday English.
What Does “Possible” Mean?
The adjective possible has several closely related uses.
Possible Meaning: Able to Happen
When an event can happen, you can describe it as possible.
A power outage is possible during the storm.
This doesn’t mean the outage will definitely occur. It simply means the event could happen.
Possible Meaning: Able to Be Done
Something is possible when you can realistically accomplish or perform it.
Is it possible to complete the repairs today?
Here, possible describes feasibility.
Possible Meaning: Able to Exist
You can also use the word when something could exist or be true.
Scientists are considering several possible explanations.
The explanations haven’t necessarily been proven. They’re candidates that could account for the evidence.
Possible Meaning: Not Certain
In another common use, possible signals uncertainty.
It’s possible that John misunderstood the instructions.
The sentence doesn’t claim that John definitely misunderstood them. It presents one explanation that may be true.
Cambridge distinguishes these broad uses by defining possible as something that can be done, achieved, or exist and as something that might or might not happen.
Possible as an Adjective
Possible is primarily an adjective.
An adjective describes or modifies a noun. Consider:
We examined every possible solution.
Here, possible describes solution.
Another example:
They considered several possible causes.
The word possible tells the reader that the causes are candidates rather than established facts.
Common patterns include:
- possible solution
- possible cause
- possible reason
- possible outcome
- possible answer
- possible explanation
- possible problem
- possible future
- possible result
- possible alternative
These combinations occur naturally in both formal and everyday English.
Common Expressions With “Possible”
Some phrases containing possible are extremely common.
“As Soon as Possible”
This means as quickly or as early as circumstances allow.
Please reply as soon as possible.
It doesn’t necessarily mean “immediately.” The exact urgency depends on context.
“If Possible”
This means if circumstances allow.
If possible, please arrive before 9 a.m.
It makes a request softer because it recognizes that the person may have limitations.
“Where Possible”
This means when circumstances allow it.
The company uses local suppliers where possible.
This expression is especially common in professional and formal writing.
“The Best Possible”
This describes the best result, choice, or condition that can be achieved.
We want to provide the best possible service.
“Every Possible”
This emphasizes a complete range of choices or efforts.
The investigators examined every possible explanation.
These expressions all require possible, not posible. Cambridge also lists common constructions such as “as soon as possible” and “the best possible.”
Common Mistakes With “Posible” and “Possible”
The most obvious mistake is dropping the second s.
Mistake: Posible
❌ Is it posible to change the date?
Correct: Possible
✅ Is it possible to change the date?
The second common mistake involves assuming that posible is an alternative regional spelling.
It isn’t.
❌ Posible is the British spelling.
❌ Possible is American, while posible is British.
✅ Possible is the standard spelling in both British and American English.
Another mistake comes from pronunciation. Because the word doesn’t strongly emphasize both written s letters, learners sometimes spell it according to sound.
That’s risky.
English contains many words whose pronunciation doesn’t provide a perfect guide to spelling. Possible is one of them.
How to Remember the Correct Spelling of Possible
A simple memory trick can prevent the mistake.
Think:
Possible has two S’s because there are two chances to succeed: possible, possible.
A more practical method is to remember the ending:
-ssible
Several familiar English words contain this pattern or a related form:
- possible
- possibly
- possibility
- impossible
- impossibility
Once you recognize the word family, the double s becomes easier to retain.
Word Family Practice
| Word | Correct spelling |
| possible | ✅ |
| possibly | ✅ |
| possibility | ✅ |
| impossible | ✅ |
| impossibility | ✅ |
| posible | ❌ |
Notice that the ss remains visible across the family:
possible → possibly → possibility
That connection gives you a stronger memory anchor than simply memorizing one isolated word.
Possible in Everyday Writing: Real-World Examples
Understanding the spelling is useful. Knowing how to use the word naturally is even better.
Possible in an Academic Essay
Academic writing frequently uses possible when discussing explanations, outcomes, limitations, and interpretations.
One possible explanation is that the sample size was too small.
Here, possible signals that the explanation is being considered rather than presented as established fact.
Another example:
Researchers identified several possible causes of the observed change.
This wording is appropriately cautious. Academic writing often distinguishes between what evidence demonstrates and what evidence merely suggests.
You might also write:
The results suggest a possible relationship between the two variables.
The word helps prevent an overly strong claim.
Possible in a Professional Email
Possible appears constantly in workplace communication.
Could you send the revised document as soon as possible?
Or:
If possible, I’d like to schedule the meeting for Thursday.
The second example sounds more flexible than a direct demand.
Another useful construction is:
Would it be possible to move the meeting to 3 p.m.?
This is a polite way to ask whether something can be done.
Possible in Social Media
Informal writing doesn’t change the correct spelling.
For example:
Is it possible that summer went by this fast?
Or:
Anything is possible when you stop making excuses.
Social media allows abbreviations, slang, and casual expressions, but possible remains the standard spelling.
Possible in a News Article
News writing often uses possible when information hasn’t been confirmed.
For example:
Officials are investigating a possible cause of the outage.
Here, possible is important because the cause hasn’t been established.
Another example:
Authorities warned of possible delays during the morning commute.
The wording communicates uncertainty without claiming that delays are certain.
This distinction matters in factual reporting. Saying something is possible isn’t the same as saying it’s confirmed.
Possible in Different Sentence Structures
The word works in several useful grammatical patterns.
Positive Statements
The project is possible.
A solution is possible.
These sentences state that something can happen or exist.
Questions
Is it possible to reschedule the appointment?
This asks whether something can be done.
Negative Sentences
It isn’t possible to complete the work today.
The negative form isn’t possible means the action cannot be achieved under the stated circumstances.
Conditional Sentences
If possible, arrive before noon.
This means arriving before noon is preferred if circumstances allow.
Sentences Expressing Uncertainty
It’s possible that the weather will improve.
This means the outcome could happen but isn’t certain.
Sentences With Superlatives
We want the best possible result.
Here, possible strengthens the noun phrase by indicating the highest achievable level.
Possible vs. Probable: What’s the Difference?
Possible and probable are related, but they don’t mean exactly the same thing.
Something is possible if it can happen or might be true.
Something is probable if it is likely to happen or be true.
Consider this example:
It is possible that it will snow tomorrow.
This means snow could happen.
Now compare:
It is probable that it will snow tomorrow.
This suggests that snow is relatively likely.
In other words:
Possible = it could happen.
Probable = it is likely to happen.
Cambridge explicitly contrasts possible with probable when defining situations that might or might not happen.
That’s an important distinction in academic, scientific, legal, and professional writing.
Possible vs. Plausible
Plausible means something appears reasonable or believable.
Something can be possible without being particularly plausible.
For example:
It is possible that an unknown factor caused the result.
That doesn’t necessarily mean the explanation is convincing.
By contrast:
That explanation is plausible.
This suggests that the explanation fits the available information reasonably well.
So the relationship is roughly:
Possible → Could be true
Plausible → Seems reasonable or believable
The two words overlap, but they shouldn’t be treated as exact synonyms.
Possible vs. Impossible
The opposite of possible is impossible.
Compare:
It is possible to solve the problem.
It is impossible to solve the problem under these conditions.
The prefix im- changes the meaning from something that can happen to something that cannot happen.
The spelling relationship is also useful for memory:
possible → impossible
Both retain the ss:
- possible
- impossible
If you remember the spelling of impossible, you can use it to reinforce the spelling of possible.
Posible vs. Possible Comparison Table
| Feature | Posible | Possible |
| Standard English spelling | ❌ No | ✅ Yes |
| Correct English form | ❌ | ✅ |
| Contains double “s” | ❌ | ✅ |
| American English | ❌ | ✅ |
| British English | ❌ | ✅ |
| Suitable for academic writing | ❌ | ✅ |
| Suitable for professional writing | ❌ | ✅ |
| Suitable for standard website content | ❌ | ✅ |
| Meaning | Not the standard English form | Can happen, exist, be done, or be true |
| Example | Posible ❌ | It is possible. ✅ |
The verdict is clear: possible is the form to use in standard English.
How to Avoid Spelling “Possible” Incorrectly
You don’t need a complicated spelling system to remember this word. A few habits work well.
Remember the Double S
The fastest reminder is:
possible = poss + ible
The two s letters belong to the standard spelling.
Learn Related Words Together
Instead of learning one word, learn its family:
- possible
- possibly
- possibility
- impossible
- impossibility
This makes the spelling pattern easier to recognize.
Don’t Spell From Pronunciation Alone
English pronunciation can hide letters.
When you’re uncertain, visualize the complete written word:
possible
rather than trying to spell it from the sound.
Use Spell-Checking Tools Wisely
Modern word processors and browsers can catch obvious spelling errors. If you type posible, many spell-checking systems will flag it.
However, don’t rely entirely on automatic correction. Learning the correct form helps you recognize the mistake before software catches it.
Practice in Complete Sentences
Instead of writing the word repeatedly by itself, use it naturally:
- Is it possible?
- If possible, call me.
- Anything is possible.
- That’s one possible answer.
- Please respond as soon as possible.
Context reinforces both spelling and meaning.
A Simple Spelling Test
Try completing each sentence with possible or posible.
- Is it ______ to finish today?
- Please respond as soon as ______.
- There are several ______ explanations.
- If ______, arrive early.
- Anything is ______ with enough preparation.
The answer is possible in every sentence.
That consistency is worth remembering. The English spelling doesn’t change based on the context.
A Useful Case Study: Why One Letter Matters
Imagine an employee writing this sentence in a business email:
Is it posible to move the meeting to Friday?
The reader will probably understand the meaning. Still, the spelling error makes the message look less polished.
Now compare:
Is it possible to move the meeting to Friday?
The second version communicates exactly the same idea, but it follows standard English spelling.
This small example shows why spelling accuracy matters. A single missing letter may not destroy meaning, but repeated errors can affect how readers perceive the quality of written communication.
The lesson isn’t that every typo is disastrous. It’s that common words such as possible are easy to correct once you know the standard form.
Conclusion
The correct spelling is possible, not posible. The word “possible” is a common English adjective used to describe something that can happen, exist, or be achieved. Although “posible” may look reasonable because of the way the word sounds, it is a spelling mistake in standard English.Remember that possible contains two s’s: pos-sible. Using the correct spelling will make your English writing, grammar, vocabulary, and professional communication more accurate. Whether you are writing an email, school assignment, blog post, report, or everyday message, always choose possible when you mean that something can happen or be done.
FAQs
1. Is “posible” a correct English word?
No. “Posible” is a misspelling. The correct English spelling is possible.
2. Is it possible or posible?
The correct form is possible, with two s letters.
3. What does “possible” mean?
“Possible” means that something can happen, exist, or be achieved.
4. Why do people spell possible as “posible”?
People may omit the second s because the word’s pronunciation can make the spelling less obvious.
5. How do you remember the spelling of possible?
Remember it as pos + sible, giving you possible with two s’s.
6. What is the opposite of possible?
The most common opposite is impossible, meaning something cannot happen or be achieved.
7. Can “possible” be used in a sentence?
Yes. For example: “It is possible to finish the project today.”
8. Is possible an adjective?
Yes. Possible is an adjective that describes something that can happen, exist, or be done.
9. What is the correct spelling in American English?
American English uses possible.
10. What is the correct spelling in British English?
British English also uses possible. The spelling does not change between these two major varieties of English.
