If you are wondering if the correct word is passerbyers, passersby, or passerby, the answer is simple: passerby is the singular form, while passersby is the standard plural form. Passerbyers is not the standard English plural and should generally be avoided. For example, you can say, “A passerby helped the injured man,” but “Several passersby stopped to help.”
This word can be confusing because passerby looks like an ordinary compound noun, but its plural is formed by changing passer to passers rather than adding -s to the end. Understanding this pattern makes the word much easier to use. Whether you are writing an essay, email, story, news report, or everyday message, choosing between passerby and passersby depends mainly on whether you mean one person or more than one person.
Quick Answer
Passerby is the correct singular form, meaning one person who happens to be passing by. Passersby is the standard plural form, meaning two or more people passing by. Passerbyers is not standard English and should not be used in formal or careful writing.
Why Do People Confuse These Words?
The confusion usually comes from the unusual plural form passersby.
Many English nouns form their plural simply by adding -s:
- student → students
- teacher → teachers
- runner → runners
- player → players
Because of this familiar pattern, some people incorrectly assume that passerby should become passerbyers or passerbys.
However, passerby is a compound noun made from passer + by. In the standard plural form, the first part changes:
passerby → passersby
The word by remains unchanged.
First Word: Passerbyers
Passerbyers is not the standard English form of the word.
Although someone might create this form by treating passerby as if it were a verb-related word and adding -ers, that is not how standard English forms the plural of passerby.
❌ Passerbyers
Instead, use:
- passerby for one person
- passersby for more than one person
Incorrect Example
❌ Several passerbyers watched the accident.
Correct Example
✅ Several passersby watched the accident.
Second Word: Passersby
Passersby is the standard plural form of passerby.
It refers to people who are passing a particular place, usually without being directly involved in what is happening there.
Examples
- Several passersby stopped to help.
- The police asked passersby whether they had seen anything.
- Two passersby noticed smoke coming from the building.
Notice that the plural is passersby, not passerbyers.
Third Word: Passerby
Passerby is the singular noun.
It means one person who is passing by a particular place.
Examples
- A passerby called the police.
- A passerby helped the unless woman.
- The accident was witnessed by a passerby.
When you are talking about only one person, use passerby.
Passerby vs. Passersby vs. Passerbyers
| Word | Correct? | Number | Meaning | Example |
|---|---|---|---|---|
| passerby | Yes | Singular | One person passing by | A passerby helped us. |
| passersby | Yes | Plural | Two or more people passing by | Several passersby stopped. |
| passerbyers | No | Intended plural | Not a standard plural form | Avoid this form. |
When Should You Use Each?
Use “Passerby” for One Person
Use passerby when you are referring to a single person.
Example:
A passerby found the lost wallet.
There is only one person in this sentence.
Use “Passersby” for Multiple People
Use passersby when you are referring to two or more people.
Example:
Several passersby gathered around the scene.
Here, more than one person is being described.
Do Not Use “Passerbyers”
Avoid passerbyers in standard English.
If you need the plural, simply use passersby.
10+ Examples of Passerby and Passersby
1. One Passerby
A passerby noticed the child crying.
2. Several Passersby
Several passersby stopped to see what had happened.
3. A Helpful Passerby
A helpful passerby gave the woman directions.
4. Witness
A passerby witnessed the accident.
5. Multiple Witnesses
Several passersby witnessed the incident.
6. Calling for Help
A passerby called an ambulance.
7. People Gathering
Passersby gathered near the entrance.
8. Asking for Directions
I asked a passerby for directions to the station.
9. A Busy Street
Many passersby walked along the busy street.
10. An Unexpected Discovery
A passerby discovered a small dog hiding under a car.
11. Police Investigation
The police questioned several passersby.
12. Public Reaction
Passersby stopped and watched the street performance.
13. Singular Question
Did a passerby help you?
14. Plural Question
Did any passersby see the accident?
Common Mistakes
Mistake 1: Using “Passerbyers”
❌ The passerbyers called the police.
✅ The passersby called the police.
Passerbyers is not the standard plural form.
Mistake 2: Using “Passerbys”
You may sometimes see passerbys, but the standard plural is passersby.
Three passerbys were standing outside.
Three passersby were standing outside.
Mistake 3: Using “Passersby” for One Person
A passersby helped me.
A passerby helped me.
Passerby is singular, while passersby is plural.
Mistake 4: Adding “People” Unnecessarily
Because passerby already refers to a person, phrases such as passerby people are usually unnecessary.
Instead of:
A passerby person helped him.
Write:
A passerby helped him.
Memory Trick
A simple way to remember the difference is:
One passerby → Many passersby
Think of the word as:
passer + by
When you make it plural, the passer part becomes plural:
passer → passers
So:
passerby → passersby
You can remember it with this sentence:
One passerby, two passersby.
Do not add -ers to the whole word.
American vs. British English
The standard forms passerby and passersby are used in both American and British English.
The basic distinction remains the same:
- passerby = one person
- passersby = more than one person
There is no major American-versus-British difference that changes the correct plural in ordinary standard English.
You may also encounter the hyphenated form passer-by, particularly in some dictionaries or older writing. However, passerby is a common modern spelling.
Similar Words
Several words have meanings related to passerby.
Bystander
A bystander is someone who is present at an event but is not directly involved.
A bystander called the police.
Pedestrian
A pedestrian is a person traveling on foot, especially in relation to roads or traffic.
The driver stopped for a pedestrian.
A pedestrian may be a passerby, but the words do not mean exactly the same thing.
Onlooker
An onlooker is someone who watches an event.
Several onlookers watched the performance.
Witness
A witness is someone who sees an event, particularly an accident, crime, or other significant occurrence.
A witness gave information to the police.
A passerby can become a witness if they see something happen.
Final Verdict
The standard forms are straightforward:
Passerby = one person passing by.
Passersby = two or more people passing by.
Passerbyers = not the standard English form.
If you are writing about several people, choose passersby. If you are describing just one person, choose passerby.
FAQs
Is “passerbyers” a correct word?
No. Passerbyers is not the standard English plural of passerby. The standard plural is passersby.
What is the plural of passerby?
The standard plural of passerby is passersby.
One passerby → Two passersby
Is “passerby” singular or plural?
Passerby is singular. It refers to one person who is passing by.
Is “passersby” singular or plural?
Passersby is plural. It refers to two or more people who are passing by.
Is “passerbys” correct?
Passerbys is not the standard plural form. In careful standard English, use passersby.
Why is the plural “passersby” instead of “passerbyers”?
Because passerby is a compound noun. Its standard plural is formed by pluralizing passer, giving passersby, rather than adding -ers to the complete word.
Can I use “passerby” in formal writing?
Yes. Passerby is a standard English noun and is appropriate in formal as well as informal writing.
Is “passer-by” also correct?
Yes, passer-by is an established spelling, although passerby is a common modern spelling. The plural is generally passers-by when using the hyphenated form.
Remember This
- Passerby = one person.
- Passersby = more than one person.
- Passerbyers = avoid it.
- Passerbys = avoid it in standard writing.
- The easiest pattern is one passerby → several passersby.
Conclusion
Choosing between passerby and passersby is easy once you remember that the word changes in the first part when it becomes plural. Use passerby when referring to one person who is passing by, and use passersby when referring to multiple people.
The form passerbyers is not the standard plural and should be replaced with passersby. Remember the simple pattern—one passerby, two passersby—and you will be able to use this word correctly in everyday speech and writing.
John Tyler is a dream researcher and content writer at SleepCout, sharing insightful articles about coded dreams, dream meanings, symbolism, sleep psychology, and practical guidance to help readers understand their dreams.
