Beside and besides are both correct words, but they have different uses. Beside usually means “next to” or “by,” as in “She sat beside me.” Besides can mean “in addition to” or “apart from,” as in “Besides English, he speaks Spanish.” The extra s changes the meaning, so they aren’t always interchangeable.
Have you ever wondered whether to use beside or besides? These two words look almost identical, but the extra s gives “besides” a different meaning and grammatical function. Beside commonly describes position, while besides usually introduces an additional idea or means “apart from.” This guide explains their meanings, grammar, differences, and everyday usage with clear examples so you can choose the right word confidently.
Beside or Besides: What’s the Difference?
The simplest way to remember the difference is to focus on meaning rather than spelling.
Beside is primarily a preposition meaning next to, alongside, or by the side of something or someone. It describes physical or figurative position.
Besides can function as a preposition or an adverb. As a preposition, it often means in addition to, apart from, or other than something. As an adverb, it commonly means also, moreover, or furthermore.
| Word | Part of speech | Main meaning | Example |
| Beside | Preposition | Next to or by the side of | She sat beside me. |
| Besides | Preposition | In addition to or apart from | Besides English, he speaks Spanish. |
| Besides | Adverb | Also or moreover | I don’t want to go. Besides, it’s raining. |
The distinction becomes especially clear when you replace the word with a simpler expression.
If next to makes sense, beside is usually correct.
If in addition to, apart from, also, or moreover makes sense, besides is usually the better choice.
For example:
The lamp is beside the sofa.
Here, next to works perfectly.
Besides the sofa, we bought a table.
Here, in addition to works naturally.
That substitution test is one of the quickest ways to distinguish the two words.
Quick recap:
Beside usually describes position.
Besides usually adds information or introduces an additional person or thing.
Beside means next to.
Besides often means in addition to, apart from, or also.
Is Beside or Besides a Grammar, Vocabulary, or Usage Issue?
The difference is primarily a matter of vocabulary and usage, although grammar also matters because the words can perform different functions in a sentence.
They aren’t simply interchangeable versions of the same word.
Consider these two sentences:
Mark stood beside Sarah.
Besides Sarah, everyone attended.
The first sentence describes physical position. Mark stood next to Sarah.
The second sentence identifies someone who is being added to or excluded from a larger group. Its meaning is closer to “apart from Sarah” or “in addition to Sarah,” depending on context.
The confusion often comes from the fact that beside and besides share the same basic spelling pattern. The extra s can look insignificant, but it changes the meaning.
Formal and Informal Usage
Both words are standard English and appear in formal and informal writing.
Beside is completely appropriate in academic writing, professional communication, journalism, literature, and everyday conversation.
Besides is also standard in formal English, especially when it means “in addition to” or “apart from.
The adverbial use of besides can sometimes feel more conversational, particularly when it introduces an additional reason:
I don’t want to drive. Besides, the roads are busy.
That sentence is natural in conversation and perfectly understandable in ordinary writing.
In more formal prose, a writer might instead use moreover, furthermore, or in addition depending on the context.
Academic Versus Casual English
Academic writing often favors precise wording. If you’re describing physical location, beside is usually the appropriate choice.
The sample was placed beside the control group.
If you’re adding another point, besides may be appropriate.
Besides the economic factors, environmental conditions affected the outcome.
In casual conversation, besides frequently appears as a way to introduce another reason:
I can’t go tonight. Besides, I’m exhausted.
The key isn’t whether one word sounds more sophisticated. The key is what relationship you want to express.
How to Use Beside Correctly
Beside is primarily a preposition. Its central meaning is next to or at the side of.
It can describe a physical location:
The chair is beside the window.
She parked beside the building.
He sat beside his brother.
It can also describe a figurative position:
Her achievements stand beside those of the greatest researchers in the field.
In that type of sentence, the meaning isn’t necessarily literal physical location. The word can express comparison, association, or being alongside something conceptually.
Workplace Example
Please place the completed forms beside the printer.
The intended meaning is that the forms should be physically located next to the printer.
Another example:
The manager stood beside the new employee during the presentation.
Again, beside refers to physical position.
Academic Example
The results from the treatment group were displayed beside the results from the control group.
The word describes where the information appears.
Technology Example
The notification icon appears beside the search box.
This is a common type of technological instruction because interfaces frequently contain elements positioned next to one another.
Usage Recap
Use beside when you can naturally substitute next to or by the side of.
The phone is beside the laptop.
means:
The phone is next to the laptop.
If that substitution works, beside is usually the correct choice.
How to Use Besides Correctly
Besides has two major uses.
The first is as a preposition meaning in addition to or apart from.
The second is as an adverb meaning also, moreover, or in addition.
As a preposition:
Besides coffee, we serve tea.
This means tea is another thing that is served in addition to coffee.
Another example is:
Besides Maria, three other employees attended the meeting.
Here, the meaning is that Maria is one person being considered along with three additional employees.
As an adverb:
I don’t want to leave. Besides, it’s already late.
Here, besides introduces another reason supporting the speaker’s position.
Workplace Example
Besides the sales team, the marketing department will attend the meeting.
The word introduces an additional group.
Another example:
We should postpone the launch. Besides, the testing isn’t complete.
Here, besides means something like “also” or “in addition.”
Academic Example
Besides economic growth, researchers examined changes in employment.
The meaning is “in addition to economic growth.”
Technology Example
Besides improving speed, the update adds several security features.
This introduces another benefit.
Usage Recap
Use besides when you’re adding something, excluding something, or introducing another point.
Think:
Besides = in addition to, apart from, or also.
When You Should NOT Use Beside or Besides
Knowing when not to use each word can prevent some of the most common mistakes.
1. Do not use besides when you mean physical location
Incorrect:
The book is besides the computer.
If you mean that the book is next to the computer, use beside.
Correct:
The book is beside the computer.
2. Do not use beside when you mean in addition to
Incorrect:
Beside mathematics, she studies chemistry.
If you mean that chemistry is another subject she studies, use besides.
Correct:
Besides mathematics, she studies chemistry.
3. Do not assume the extra letter is optional
The s in besides is not merely a spelling variation. It can signal a different meaning.
4. Do not use beside to introduce an additional argument
Incorrect:
Beside being expensive, the car is difficult to maintain.
If you mean “in addition to being expensive,” use besides.
Correct:
Besides being expensive, the car is difficult to maintain.
5. Do not use besides when describing an object’s position
Incorrect:
The keyboard is besides the monitor.
Correct:
The keyboard is beside the monitor.
6. Do not treat besides as exclusively informal
Although conversational uses are common, besides is a standard English word and is appropriate in many formal contexts.
7. Do not assume besides always means exclusion
Depending on context, besides can mean either “in addition to” or “apart from.” The surrounding sentence determines the intended relationship.
8. Do not rely only on pronunciation
In many varieties of English, the words sound extremely similar. Listening alone may not help you distinguish them. Consider the meaning of the sentence instead.
Common Mistakes and Decision Rules
The following examples show how a single extra letter can change the intended meaning.
| Correct sentence | Incorrect sentence | Explanation |
| She sat beside her friend. | She sat besides her friend. | Physical position requires beside. |
| Besides English, he studies French. | Beside English, he studies French. | The meaning is in addition to. |
| The store is beside the bank. | The store is besides the bank. | The store is next to the bank. |
| Besides the cost, we considered quality. | Beside the cost, we considered quality. | Cost is one factor among others. |
| The child stood beside his mother. | The child stood besides his mother. | The sentence describes physical location. |
| Besides being useful, the tool is affordable. | Beside being useful, the tool is affordable. | The sentence adds another quality. |
Decision Rule
If you mean next to or by the side of something, use BESIDE.
If you mean in addition to, apart from, or also, use BESIDES.
This rule handles most everyday cases.
Beside or Besides in Different Sentence Structures
One reason learners struggle with these words is that beside generally has a straightforward positional function, while besides can introduce an additional noun, phrase, or complete idea.
Compare:
The bicycle is beside the garage.
The phrase describes location.
Now compare:
Besides the bicycle, there is a motorcycle in the garage.
Here, the word introduces an additional item.
There is also an important construction involving besides + gerund:
Besides working full time, she attends university.
The meaning is “in addition to working full time.”
Another example:
Besides studying for the exam, he completed his project.
Again, an additional activity is being introduced.
This structure is common in both spoken and written English.
Beside and Besides in Questions
The distinction remains the same in questions.
For location:
Who is sitting beside you?
The question asks who is next to you.
For addition:
Besides John, who is coming?
The question asks who else is coming in addition to John.
This is a useful pair to remember because the difference becomes especially obvious when the sentences are placed side by side.
Who is beside you?
means:
Who is next to you?
Who is besides you?
This second version generally does not communicate the intended meaning in standard contemporary English when physical position is meant.
Beside and Besides in Negative Sentences
Besides is particularly common when someone gives an additional reason for rejecting an idea.
For example:
I don’t want to buy it. Besides, we already have one.
The first sentence gives one reason. The second sentence adds another.
Another example:
We shouldn’t leave yet. Besides, nobody is ready.
Here, besides introduces additional support for the speaker’s argument.
This use is common in conversation because people often build an argument by adding one reason after another.
By contrast, beside generally doesn’t perform this argumentative function.
X and Y in Modern Technology and AI Tools
Modern technology creates many opportunities for both words to appear naturally.
A user interface may contain one element beside another:
The settings button is beside the profile icon.
A software guide may describe an additional feature using besides:
Besides generating summaries, the tool can extract keywords.
AI assistants also need to interpret the distinction correctly when generating instructions, editing text, or answering grammar questions.
Consider the difference:
Put the button beside the menu.
This describes placement.
Besides the menu, the page contains a search tool.
This describes an additional element.
The distinction is particularly important in instructional writing because replacing one word with the other can alter the relationship between ideas.
For content creators, technical writers, teachers, and editors, the simplest quality check is still the substitution test.
If the sentence means next to, choose beside.
If it means in addition to, apart from, or also, choose besides.
The Etymology of Beside and Besides
The history of these words helps explain why they look so similar.
Beside developed from older English expressions involving the idea of being by or at the side of something. Its core positional meaning has remained remarkably stable.
Besides developed from the same basic family of expressions but came to acquire the additional sense of something being outside or beyond the primary thing under discussion. Over time, that developed into meanings such as in addition to and moreover.
This shared history explains the visual similarity.
The words are related, but modern English gives them distinct functions.
That is why treating them as simple spelling alternatives is misleading.
An Expert Style Rule for Remembering the Difference
A useful language principle is:
Meaning should determine the word, not visual similarity.
When deciding between these forms, first identify the relationship you want to express.
If you’re describing location, think spatially:
beside = next to
If you’re adding information, think cumulatively:
besides = in addition
This approach is more reliable than trying to memorize isolated sentences.
Two Practical Case Studies
Case Study One: Workplace Instructions
Imagine a manager writes:
Place the signed contract beside the scanner.
The employee understands that the contract should be placed next to the scanner.
If the manager instead writes:
Besides the signed contract, submit the identification form.
The employee understands that the identification form is an additional requirement.
The concrete difference is important. The first sentence gives a location instruction. The second gives an additional requirement.
A single letter therefore changes the relationship being communicated.
Case Study Two: Academic Writing
Consider this sentence:
Besides historical evidence, the researcher examined contemporary records.
The writer is identifying another category of evidence.
Now compare:
The historical records were stored beside the contemporary records.
Here, the writer is describing where the records were located.
The words look almost identical, but the logical relationships are completely different.
This is why careful editing matters in academic and professional writing.
Error Prevention Checklist
Always use beside when
- You mean next to something.
- You mean by the side of something.
- You are describing physical position.
- You are describing something being alongside another thing.
- You are giving directions involving location.
- You can replace the word with next to without changing the meaning.
Always use besides when
- You mean in addition to.
- You mean apart from.
- You mean also.
- You are introducing another reason.
- You are adding another person, thing, quality, or idea.
- You can replace the word with in addition to or also.
A Fast Memory Trick
Think of the final s in besides as signaling that you’re adding something to the sentence.
Beside = next to
Besides = adding another point
This isn’t a formal grammatical rule, but it’s an effective memory aid.
Related Grammar Confusions You Should Master
Understanding similar word pairs can make English writing much more precise.
Among and Between
These words both describe relationships involving multiple entities, but their traditional uses differ according to context and structure.
Affect and Effect
Affect is most commonly a verb, while effect is most commonly a noun. Their meanings and grammatical roles differ.
Further and Farther
Both can refer to greater distance, but their traditional distinctions involve physical distance and figurative or additional meaning.
Then and Than
Then commonly relates to time or sequence, while than is used in comparisons.
Its and It’s
Its is a possessive form, while it’s is a contraction of “it is” or “it has.”
Your and You’re
Your indicates possession, while you’re means “you are.”
Their, There, and They’re
These words sound alike in many varieties of English but have completely different grammatical functions.
Everyday and Every Day
Everyday is an adjective meaning ordinary or routine, while every day refers to each day.
Into and In To
Into commonly expresses movement toward or transformation, while in to consists of two separate words whose meanings depend on the sentence.
Fewer and Less
These words are often distinguished by countable and uncountable nouns, although actual usage can be more nuanced.
FAQs
Is beside or besides correct?
Both beside and besides are correct English words, but they have different meanings. Use beside when you mean next to or by the side of something. Use besides when you mean in addition to, apart from, or also.
What is the difference between beside and besides?
Beside generally describes position and means next to. Besides generally expresses addition or separation and can mean in addition to, apart from, or also.
Is beside the same as next to?
Yes, in many contexts. Beside commonly means next to or by the side of something.
This means the car is next to the house.
Does besides mean in addition to?
Yes. This is one of its most common uses.
Besides coffee, we serve tea.
The sentence means that tea is served in addition to coffee.
Can besides mean also?
Yes. Besides can function as an adverb meaning also or moreover.
I don’t want to go. Besides, I’m tired.
The word introduces an additional reason.
Can beside be used in formal writing?
Yes. Beside is a standard word and is entirely appropriate in formal, academic, professional, and everyday writing.
Can besides be used in academic writing?
Yes. Besides is standard English and can be used in academic writing when its meaning is appropriate. In highly formal contexts, alternatives such as in addition or moreover may sometimes provide a more precise stylistic choice.
Is it beside the point or besides the point?
The standard expression is beside the point. It means irrelevant to the matter being discussed.
That argument is beside the point.
Here, beside has a figurative sense related to being outside the main issue.
Is it beside myself or besides myself?
The standard expression is beside myself, especially in phrases such as “beside myself with worry” or “beside myself with anger.” The phrase describes an intense emotional state.
How can I quickly remember beside versus besides?
Use the simple substitution test. If next to works, use beside. If in addition to, apart from, or also works, use besides.
Conclusion:
The difference between beside or besides becomes much easier once you focus on the relationship expressed by each word.
Use beside when you mean next to, alongside, or by the side of something. It is primarily used to describe position, whether that position is physical or figurative.
Use besides when you mean in addition to, apart from, also, or moreover. It commonly introduces an additional person, thing, idea, quality, or reason.
The most useful rule is simple:
Beside means next to.
Besides means in addition to or also.
When you’re unsure, replace the word in your sentence. If next to fits, choose beside. If in addition to or also fits, choose besides.
Once you learn that distinction, this common English confusion becomes much easier to handle in conversations, academic writing, workplace communication, and everyday messages.
