If you are unsure whether to write occurring or occuring, the correct spelling is occurring.
The spelling occuring is incorrect in standard English. The confusion happens because the verb occur ends in -r, and when -ing is added, the final r is doubled: occur → occurring.
This small spelling difference matters in emails, essays, resumes, academic writing, business documents, articles, and everyday communication. A single missing r can make an otherwise polished sentence look careless.
In this guide, you will learn the difference between occurring vs occuring, why the r is doubled, how to pronounce occurring, when to use it, common mistakes, memory tricks, synonyms, word history, and examples in formal and casual writing.
Quick Answer: Occurring or Occuring?
Occurring is the correct spelling.
Occuring is a misspelling and should not be used in standard English.
| Spelling | Correct? | Example |
|---|---|---|
| occurring | ✅ Yes | The problem is occurring again. |
| occuring | ❌ No | The problem is occuring again. |
The correct form is:
occur + r + ing = occurring
The word has two r’s before the -ing ending.
Correct examples
- A power outage is occurring in the area.
- The event is occurring every Friday.
- Several changes are occurring at the company.
- The accident occurred while heavy rain was occurring.
- This problem is occurring more frequently.
Incorrect examples
- ❌ The problem is occuring again.
- ❌ Changes are occuring rapidly.
- ❌ The event is occuring today.
Replace occuring with occurring.
What Does Occurring Mean?
Occurring is the present participle or gerund form of the verb occur.
The verb occur means to happen, take place, or exist at a particular time or place.
Therefore, occurring means:
Happening, taking place, or existing at a particular time or in a particular situation.
For example:
A strange noise is occurring outside.
This means that the strange noise is happening outside.
Another example:
Changes are occurring in the industry.
This means changes are taking place in the industry.
Dictionary-style definition
Occurring
Part of speech: Present participle/gerund of occur
Meaning: Happening, taking place, or being present.
Simple synonyms
Depending on context, occurring can mean:
- happening
- taking place
- developing
- arising
- appearing
- existing
- emerging
- unfolding
- happening repeatedly
The best synonym depends on the sentence.
Why Is Occurring Spelled With Two Rs?
This is the main reason people search for occurring vs occuring.
The base verb is:
occur
When -ing is added, the final consonant is doubled:
occur → occurring
The spelling pattern follows a common English rule involving certain short-vowel, stressed syllable endings.
The important thing to remember is that occur ends with a single r, but occurring has rr.
The spelling breakdown
O C C U R + R + I N G
= O C C U R R I N G
= occurring
The extra r is not optional.
Compare these forms
| Verb | Correct -ing form |
|---|---|
| occur | occurring |
| prefer | preferring |
| refer | referring |
| admit | admitting |
| begin | beginning |
The spelling of occurring follows the same general doubling pattern found in words such as referring and preferring.
Occurring vs Occuring: Key Difference
There is only one important spelling difference between the two forms:
- occurring = correct
- occuring = incorrect
They are not two different words with different meanings.
Occuring is simply a misspelling of occurring.
This means you should not choose between them based on meaning, tone, context, or region.
For example, there is no situation in standard American or British English where occuring becomes the correct spelling.
Correct
The same issue is occurring in several departments.
Incorrect
The same issue is occuring in several departments.
The meaning is understandable in the second sentence, but the spelling is wrong.
Why Do People Confuse Occurring and Occuring?
The mistake is extremely understandable.
English spelling does not always work exactly as pronunciation suggests. When people hear occurring, they may mentally divide the word as:
occur + ing
That can lead to:
occuring
However, the spelling requires the extra r:
occurring
There are several reasons for the confusion.
1. The pronunciation does not clearly emphasize the second R
When spoken naturally, the two r’s do not sound like two separate consonants.
So someone may know the word perfectly well but still type occuring.
2. English has complicated spelling patterns
English contains many words in which consonants are doubled when suffixes are added.
Examples include:
- running
- stopping
- beginning
- admitting
- referring
- preferring
- occurring
Learning these patterns takes practice.
3. People type quickly
The incorrect form occuring is especially common in fast typing because the second r is easy to miss.
4. Spellcheck may catch the mistake, but not always immediately
Depending on the software, browser, keyboard, or application, a spelling error may not be highlighted until later.
5. The base word creates a visual trap
Because the base word is occur, writers naturally think:
occur + ing
But the correct spelling changes to:
occurring
Is Occuring Ever Correct?
No.
In standard modern English, occuring is not the accepted spelling.
It is an orthographic error.
If you are writing for school, work, publishing, academic purposes, websites, professional communication, or formal documents, always use:
occurring
You may occasionally encounter occuring online, in social media posts, comments, user-generated content, or informal messages. Its appearance does not make it an accepted spelling.
How to Pronounce Occurring
Occurring is commonly pronounced approximately:
uh-KUR-ing
The stress falls on the second syllable.
The word comes from occur, so the pronunciation is closely related to:
occur → occurring
The spelling contains rr, but you do not pronounce two separate “r” sounds.
Example
What is occurring here?
The pronunciation sounds roughly like:
What is uh-KUR-ing here?
Pronunciation can vary slightly by accent, but the spelling remains occurring in standard English.
Is Occurring a Verb?
Yes, occurring comes from the verb occur.
However, it can perform different grammatical roles depending on how it is used.
Occurring as part of a continuous verb
The problem is occurring again.
Here, occurring is part of the present progressive verb phrase is occurring.
Occurring as a participle modifying a noun
The occurring changes were difficult to predict.
This type of construction is grammatically possible, although another adjective or structure may sound more natural depending on context.
Occurring as a gerund
Preventing problems before they occur is better than responding to them.
More specifically, a gerund use would be something like:
The occurring of the event was unexpected.
However, this construction is awkward in ordinary English. Occurrence is normally preferred:
The occurrence of the event was unexpected.
This distinction is useful because occurring and occurrence are related but serve different grammatical purposes.
Occurring vs Occurrence
These words are closely related but should not be confused.
Occurring means happening.
Occurrence means an event or instance of something happening.
| Word | Meaning | Example |
|---|---|---|
| occurring | happening | The problem is occurring again. |
| occurrence | an event or instance | The occurrence was unusual. |
| occur | happen | Problems can occur. |
| occurred | happened | The accident occurred yesterday. |
Compare
A strange event is occurring.
The event is happening now.
The strange occurrence surprised everyone.
The occurrence is the event itself.
Occur, Occurred, Occurring, Occurs
Learning the entire word family makes the spelling easier.
| Form | Example |
|---|---|
| occur | Problems can occur. |
| occurs | The problem occurs frequently. |
| occurred | The problem occurred yesterday. |
| occurring | The problem is occurring now. |
| occurrence | The occurrence was unexpected. |
Notice something important:
occurred and occurring both contain double r’s.
Examples
The error occurred yesterday.
The error is occurring again.
The error may occur tomorrow.
The error frequently occurs during updates.
The error was an unusual occurrence.
When Should You Use Occurring?
Use occurring when you want to describe something that is happening or taking place.
It is common in many contexts.
Everyday English
What’s occurring in the kitchen?
However, in casual American English, happening is often more natural.
What’s happening in the kitchen?
Business writing
Several changes are occurring within the organization.
Academic writing
Significant changes are occurring in the global economy.
Technical writing
The error is occurring during the installation process.
News writing
Heavy flooding is occurring in several regions.
Sports writing
The changes are occurring during the second half.
Medical or scientific writing
The reaction is occurring at a higher temperature.
The word is versatile and appropriate in both formal and neutral writing.
Occurring vs Happening
Happening and occurring are often synonyms, but they do not always sound equally natural.
Happening is more conversational.
Occurring is often more formal, technical, or precise.
| Context | More natural choice |
|---|---|
| Casual conversation | happening |
| Friendly text | happening |
| Business report | occurring |
| Academic paper | occurring |
| Technical documentation | occurring |
| News report | either |
| Formal analysis | occurring |
Casual
What’s happening?
More formal
What is occurring?
The second sentence is grammatically correct, but it can sound unnecessarily formal in everyday conversation.
Formal vs Informal Use of Occurring
Occurring is neutral-to-formal.
It is not slang.
It does not have a special informal meaning.
For casual communication, consider alternatives such as:
- happening
- taking place
- going on
- coming up
- developing
Formal
A significant change is occurring in the market.
Neutral
A significant change is happening in the market.
Conversational
Something is going on in the market.
All three communicate a similar idea, but the tone differs.
Occurring in American English vs British English
The spelling occurring is standard in both American and British English.
There is no major regional spelling difference here.
American English
The event is occurring tomorrow.
British English
The event is occurring tomorrow.
Both use occurring.
The same applies to other major English varieties, including Canadian and Australian English.
The incorrect spelling occuring does not become correct simply because of regional variation.
Occurring in Academic Writing
Occurring is common in academic and scientific writing because it can describe processes, events, patterns, and changes.
Examples include:
The reaction is occurring under controlled conditions.
The changes occurring within the sample were carefully documented.
Several patterns are occurring simultaneously.
The phenomenon is occurring at a relatively low temperature.
However, academic writing should favor precision.
Sometimes taking place, developing, emerging, or arising may communicate the exact idea more clearly.
Occurring in Business Writing
In business communication, occurring is useful when describing events, changes, problems, or trends.
Examples
Several changes are occurring within the company.
The issue is occurring across multiple departments.
Delays are occurring because of supply shortages.
The problem has been occurring more frequently.
For a customer-facing email, however, simpler wording can be friendlier.
More formal
We are investigating the issue currently occurring on the platform.
More natural
We are investigating the issue currently affecting the platform.
The second version may be more direct.
Occurring in Technical Writing
Technical writers often use occurring to describe when an error, process, reaction, or event takes place.
Examples:
The error is occurring during startup.
The issue is occurring only on older devices.
The failure is occurring after the update is installed.
If the problem continues occurring, restart the application.
A more natural version of the last sentence might be:
If the problem continues, restart the application.
This demonstrates an important writing principle: correct does not always mean best.
A sentence can be grammatically correct while still being unnecessarily wordy.
Occurring in Journalism and News Writing
News writing frequently uses occurring when describing events or developments.
For example:
Severe flooding is occurring in several coastal areas.
Protests are occurring across the city.
The incident occurred shortly after midnight.
However, journalists often choose simpler words such as happening, taking place, or developing when they make the sentence clearer.
Occurring in Sports Writing
Sports writers can use occurring to describe events during a game or season.
Examples:
Most of the scoring occurred in the second half.
Several changes are occurring in the team’s lineup.
The shift is occurring late in the game.
But sports writing often favors stronger verbs:
The team’s momentum shifted in the second half.
This is more vivid than:
A momentum change was occurring in the second half.
Common Collocations With Occurring
A collocation is a combination of words that commonly appear together.
Here are useful combinations involving occurring.
Common examples
- currently occurring
- frequently occurring
- commonly occurring
- naturally occurring
- rarely occurring
- repeatedly occurring
- simultaneously occurring
- regularly occurring
- previously occurring
- newly occurring
Examples
This is a commonly occurring problem.
Scientists studied a naturally occurring compound.
The issue is frequently occurring.
Two events were simultaneously occurring.
One particularly common phrase is:
Naturally occurring
Gold is a naturally occurring element.
Here, occurring means existing in nature.
Naturally Occurring: What Does It Mean?
Naturally occurring is an important phrase in science, medicine, environmental writing, and everyday English.
It means something exists or develops naturally rather than being artificially created.
Examples:
Salt is a naturally occurring mineral.
The region contains naturally occurring minerals.
Scientists discovered a naturally occurring substance.
The phrase does not mean that something happens frequently. It means that it occurs naturally.
Common Mistakes With Occurring
Mistake 1: Writing occuring
❌ The problem is occuring again.
✅ The problem is occurring again.
Mistake 2: Removing an R from occurred
❌ The accident occured yesterday.
✅ The accident occurred yesterday.
Both occurred and occurring require the double r.
Mistake 3: Using occurred for something happening now
❌ The problem occurred right now.
Better:
✅ The problem is occurring right now.
Occurred normally refers to something that happened in the past.
Mistake 4: Using occurring when happened sounds better
The meeting is occurring at 3 p.m.
This is grammatically possible, but:
The meeting is taking place at 3 p.m.
or
The meeting is happening at 3 p.m.
may sound more natural.
Awkward vs Natural Examples
Correct spelling is only one part of good writing.
Awkward
A problem is occurring with the computer.
More natural
The computer is having a problem.
Or:
A problem is affecting the computer.
Awkward
What is occurring with your phone?
Natural
What’s happening with your phone?
Formal
Several changes are occurring within the organization.
More conversational
Several changes are happening within the organization.
Neither is necessarily wrong. The best choice depends on the audience.
Occurring vs Taking Place
These expressions are similar.
Occurring can sound more formal or technical.
Taking place is often natural when discussing planned events.
Compare
The conference is occurring next week.
This is understandable, but somewhat unusual.
The conference is taking place next week.
This sounds much more natural.
For events such as meetings, conferences, ceremonies, and competitions, taking place is often the better choice.
Occurring vs Arising
These words overlap but are not identical.
Occurring means happening.
Arising often means coming into existence or becoming a problem.
Examples
Problems are occurring throughout the system.
Problems are arising throughout the system.
The first emphasizes the fact that problems are happening.
The second can suggest that new problems are developing.
Occurring vs Existing
These words have different meanings.
Occurring = happening.
Existing = being present or already in existence.
Example
The chemical reaction is occurring.
The reaction is happening.
The chemical exists naturally.
The substance is present.
They should not automatically be treated as synonyms.
Occurring vs Emerging
Emerging often describes something new that is developing or becoming noticeable.
Occurring is broader.
Examples
A problem is occurring.
A new trend is emerging.
The second sentence tells us that the trend is becoming visible or developing.
Word History and Etymology of Occur
The word occur ultimately comes from Latin occurrere, meaning roughly to run toward, meet, or present itself.
It entered English through French and developed into the modern sense of something happening or taking place.
The related noun occurrence developed from the same word family.
Understanding the word’s history is not necessary to spell occurring correctly, but it explains why the modern word has the structure it does.
The important modern forms are:
occur → occurs → occurred → occurring → occurrence
Synonyms for Occurring
The best synonym depends on context.
General synonyms
- happening
- taking place
- unfolding
- developing
- arising
- appearing
- emerging
- coming about
Formal alternatives
- taking place
- transpiring
- arising
- developing
- manifesting
Simple alternatives
- happening
- going on
- taking place
Example
A change is occurring.
Possible alternatives:
A change is happening.
A change is taking place.
A change is developing.
A change is emerging.
Each one carries a slightly different tone or meaning.
Antonyms Related to Occurring
There is no single perfect antonym for occurring, because the opposite depends on the context.
Possible contrasting concepts include:
- stopping
- ending
- ceasing
- disappearing
- remaining unchanged
- not happening
- preventing
Examples
The problem is occurring.
Possible opposite:
The problem has stopped occurring.
Changes are occurring.
Possible contrast:
No changes are taking place.
Memory Tricks for Occurring
If you frequently misspell occurring, try one of these memory tricks.
Trick 1: Remember “occur” gets another R
Think:
OCCUR + R + ING = OCCURRING
The second r is added before -ing.
Trick 2: Connect it to occurred
If you know that occurred has two Rs, remember that occurring does too.
occurred
occurring
Both have rr.
Trick 3: Say “double R”
When proofreading, tell yourself:
Occurring has double R.
That quick mental check can prevent the most common spelling error.
Trick 4: Watch the middle
Break the word visually into:
occur + ring
The r at the beginning of “ring” helps you remember the extra letter.
A Simple Rule to Remember
When writing occurring, never stop at:
occuring
Instead, remember:
If it is happening, it is occurring—with two Rs.
This is a simple rule that works every time in standard English.
Real-World Examples of Occurring
Here are examples from different writing situations.
Everyday conversation
What’s occurring outside?
More natural casually:
What’s happening outside?
School writing
Several changes are occurring during adolescence.
Academic writing
Significant differences are occurring between the two groups.
Business
Several changes are occurring within the organization.
Technology
The error is occurring during installation.
Science
The reaction is occurring at a higher temperature.
Environment
Naturally occurring minerals were found in the area.
News
Severe weather is occurring across the region.
Sports
Most of the scoring occurred in the final quarter.
Blogging
Why is this problem occurring so often?
How to Use Occurring in a Sentence
A useful sentence pattern is:
Subject + is/are + occurring
Examples:
The problem is occurring again.
Several changes are occurring.
The event is occurring now.
Another pattern is:
something + occurring + location/time
Examples:
The changes occurring today could affect the industry.
Problems occurring during installation should be reported.
Here, occurring helps describe a noun.
Formal Alternatives to Occurring
If you are writing professionally, don’t automatically replace occurring with a more complicated word.
Simple English is often stronger.
Depending on the context, you can use:
| Instead of | Consider |
|---|---|
| occurring | happening |
| occurring | taking place |
| occurring | developing |
| occurring | arising |
| occurring | unfolding |
| occurring | emerging |
Example
Several problems are occurring.
Could become:
Several problems are happening.
Or:
Several problems are developing.
Choose the word that gives the most precise meaning.
Is “Occurring” a Formal Word?
Yes, occurring is a standard word with a neutral-to-formal tone.
It is appropriate for:
- academic writing
- professional writing
- business reports
- technical documents
- journalism
- scientific writing
- formal correspondence
It is also grammatically acceptable in casual writing, although happening may sound more conversational.
Is Occurring a Slang Word?
No.
Occurring is not slang.
It is a standard English word derived from the verb occur.
It does not have a separate slang definition commonly recognized in modern American English.
If someone writes occuring, they are almost certainly making a spelling mistake rather than using a slang variant.
Does Occurring Have a Figurative Meaning?
The word itself primarily means happening or taking place.
It can appear in both literal and abstract contexts.
More literal
An accident is occurring on the highway.
Abstract
A major shift is occurring in public opinion.
The second sentence describes an abstract change rather than a physical event.
So while occurring does not have a special figurative slang definition, it can describe both concrete and abstract events.
Does Occurring Have a Political Meaning?
No special political meaning exists.
The word may appear frequently in political reporting because journalists discuss events, changes, conflicts, elections, policy shifts, and social developments.
For example:
Major changes are occurring in the political landscape.
Here, occurring simply means happening.
The political context does not change the basic definition.
Does Occurring Have a Technical Meaning?
Not a completely separate technical definition.
However, technical fields use occurring extensively because researchers need to describe processes and events precisely.
For example:
The reaction is occurring under pressure.
The error is occurring during data transfer.
The process is occurring at a constant rate.
The meaning remains essentially happening or taking place.
Quick Grammar Check
Before submitting an article, essay, email, or report, ask:
Am I trying to say “happening”?
If yes, occurring may be appropriate.
Then check the spelling:
❌ occuring
✅ occurring
Next, consider whether a simpler word would sound better.
The event is occurring tomorrow.
might be better as:
The event is taking place tomorrow.
Frequently Asked Questions About Occurring vs Occuring
Is it occurring or occuring?
Occurring is correct. Occuring is a misspelling. The correct word contains two consecutive r’s: occurring.
Why does occurring have two Rs?
The final consonant of occur is doubled when the -ing ending is added. Therefore, occur + ing becomes occurring, not occuring.
Is occuring ever a correct spelling?
No. Occuring is not the standard spelling in American, British, Canadian, or Australian English.
What does occurring mean?
Occurring means happening, taking place, or existing in a particular situation or place.
Is occurring a verb?
Occurring is the present participle and gerund form of the verb occur. It is commonly used in continuous verb forms such as is occurring.
What is the difference between occurring and happening?
Both can mean taking place, but happening is generally more conversational, while occurring can sound more formal or technical.
How do you spell occurring correctly?
Spell it:
O-C-C-U-R-R-I-N-G
A useful memory aid is occur + r + ing.
Is occurring used in American English?
Yes. Occurring is standard in American English and is also standard in British and other major varieties of English.
What is the noun form of occurring?
The related noun is occurrence. For example: The occurrence was unexpected.
Is occurring formal or informal?
Occurring is generally neutral to formal. It is especially common in academic, professional, scientific, technical, and journalistic writing. In casual conversation, happening often sounds more natural.
Conclusion
When comparing occurring vs occuring, there is no real choice between two accepted spellings.
Occurring is correct.
Occuring is incorrect.
The key spelling rule is simple:
occur + r + ing = occurring
The word occurring means happening, taking place, or developing. It is a standard English word used in everyday communication as well as academic, business, scientific, technical, journalistic, and professional writing.
Remember that occurring, occurred, and occurrence all belong to the same word family, and the forms occurring and occurred both contain double r’s.
For casual writing, happening may sometimes sound more natural. For formal or technical writing, occurring is often a useful choice. But regardless of context, never write occuring when you mean the standard English word.
If you remember only one thing, remember this:
If something is happening, it is occurring—with two Rs.
