C1 Expression Formal 7 min read

As an aside

Academic discourse marker used to connect ideas

In 15 Seconds

  • A verbal 'P.S.' used to share secondary but related thoughts.
  • Signals a brief detour without losing the main conversational thread.
  • Common in professional, academic, and structured speaking contexts.
  • Acts as a sophisticated bridge for 'nice-to-know' extra details.

Meaning

It is like a verbal 'P.S.' or a quick detour. You use it to share a related but secondary thought without losing your place in the main conversation. It signals that what follows is an extra detail, not the main point, but still worth mentioning.

Key Examples

3 of 10
1

Professional email

The contract is attached for your review. As an aside, I hope you enjoyed your vacation!

The contract is attached for your review. As an aside, I hope you enjoyed your vacation!

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2

Job interview

I have five years of experience in sales. As an aside, I also speak fluent Spanish.

I have five years of experience in sales. As an aside, I also speak fluent Spanish.

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3

Academic presentation

The study focused on urban growth. As an aside, the data was collected entirely via mobile apps.

The study focused on urban growth. As an aside, the data was collected entirely via mobile apps.

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🌍

Cultural Background

Often used to soften a critique by adding a positive aside.

💡

Use commas

Always use a comma after the phrase.

In 15 Seconds

  • A verbal 'P.S.' used to share secondary but related thoughts.
  • Signals a brief detour without losing the main conversational thread.
  • Common in professional, academic, and structured speaking contexts.
  • Acts as a sophisticated bridge for 'nice-to-know' extra details.

What It Means

Think of as an aside as your conversational turn signal. You are driving down the main road of a topic. Suddenly, you see a scenic viewpoint. You want to stop for a second, look at the view, and then keep driving. This phrase tells your listener, "Hey, I'm taking a tiny detour, but I'll be right back." It acts like a set of mental brackets or a sticky note. It adds flavor or context without derailing the whole train of thought. It has a vibe of being organized yet spontaneous. You sound like someone who has a lot of interesting thoughts but respects the structure of the talk. It's sophisticated but very human.

How To Use It

You usually drop this at the beginning of a sentence. It works as a transition or a 'discourse marker.' It prepares the listener's brain for a change in priority. You say your main point, add the aside, and then return to the main point. In writing, you might see it used to introduce a parenthetical thought. It’s perfect for when you remember a detail that isn't essential but is too good to leave out. Just don't let your aside become a whole new speech! We’ve all had that friend who takes a 'detour' and ends up in another country. Keep it brief, like a quick TikTok clip between longer YouTube segments. It’s about balance.

Formality & Register

This phrase is the 'smart-casual' of the English language. It’s perfectly at home in a C-suite boardroom or a University lecture. However, you can also use it while grabbing coffee with a friend if you want to sound slightly more articulate. It is definitely more formal than by the way or anyway. If by the way is a t-shirt, as an aside is a crisp button-down shirt. It’s common in podcasts, professional emails, and long-form essays. You won't usually hear it in a rowdy sports bar or a frantic 911 call. Use it when you want to appear thoughtful and composed. It shows you are in control of your narrative. It’s a very 'C1 level' move.

Real-Life Examples

Imagine you are in a Zoom meeting discussing the quarterly budget. You say, "The marketing spend is up 10%. As an aside, the new designer we hired is doing a fantastic job." See? You’ve given a compliment without distracting from the numbers. Or think about a travel vlogger in Tokyo. They might say, "The ramen here is incredible. As an aside, make sure you bring cash because many shops don't take cards." It’s a helpful tip tucked inside a review. On social media, you might see it in a long Instagram caption where someone is sharing a deep life lesson but adds a quick note about their outfit. It’s the ultimate multi-tasking phrase for the modern world. Even Netflix subtitles are full of these during character monologues.

When To Use It

Use it when a thought pops into your head that is relevant but 'extra.' It’s great for adding 'fun facts' during a presentation. Use it in professional emails to mention something that doesn't deserve its own paragraph. It’s perfect for job interviews when you want to mention a secondary skill. "I'm proficient in Python. As an aside, I also enjoy teaching basics to beginners." It makes you seem well-rounded. Use it when you want to soften a transition. It’s also useful for correcting yourself gently without making it a big deal. Basically, if it’s a 'nice to know' rather than a 'need to know,' it’s aside-time.

When NOT To Use It

Don't use it for life-or-death information. You wouldn't say, "The building is on fire. As an aside, the exit is behind you." That’s too casual for a crisis! Avoid it if your 'aside' is actually the most important part of the conversation. If you have a big secret to tell, don't bury it in an aside. Also, don't use it every two minutes. If everything is an aside, then nothing is the main point. It will make you sound scattered and unfocused. Avoid using it in very short text messages where space is limited; btw is much better there. Finally, don't use it if you are already in a very informal setting where sounding 'academic' might seem pretentious.

Common Mistakes

Beside an aside As an aside. (Don't confuse your prepositions!)
In an aside As an aside. (While characters in plays speak 'in an aside,' the phrase for conversation is 'as an.')
As a side As an aside. (It’s one word: aside.)
As an aside note As a side note. (Don't mix these two common phrases up!)

Learners often forget the an. It sounds like 'Asaside' when natives speak fast. Take a breath and pronounce that an clearly. Another mistake is using it to introduce a total change of subject. If you are talking about cats and suddenly want to talk about the moon, an aside isn't enough of a bridge. You need a bigger boat for that transition! Keep the aside related to the main topic, even if it's just a loose connection.

Common Variations

On a side note is the most common twin. It’s a bit more casual and very popular in North American English. Incidentally is the high-brow, slightly more formal version. You’ll hear it in BBC documentaries. By the way is the universal, everyday version. If you are writing a very formal paper, you might use It is worth noting that. In texting, people just use BTW. Some people say While I'm on the subject, which is a bit more wordy. Speaking of which is used when the aside is triggered by a specific word someone just said. Each one has a slightly different 'weight,' so choose your flavor carefully!

Real Conversations

M

Manager

The project is due on Tuesday, and we need everyone's input.
E

Employee

I'll have my part finished by Monday morning.
E

Employee

As an aside, I noticed the coffee machine is broken again. Should I call repair?
M

Manager

Thanks for the update. And yes, please do! I'm dying for a latte.
H

Host

Welcome back to our podcast. We're talking about the history of salt.
G

Guest

Salt was so valuable it was used as currency.
G

Guest

As an aside, that's where the word 'salary' actually comes from.
H

Host

Wow, I never knew that! That's a great fun fact for our listeners.

Quick FAQ

Is as an aside formal? Yes, it is generally considered formal or professional. It works well in business and academic contexts. Can I use it in a text? You can, but it might seem a bit 'extra.' Use btw for quick messages to friends. What is the difference between this and by the way? As an aside feels more deliberate and structured. By the way feels more like a random thought. Does it always need a comma? Yes, in writing, you should always put a comma after it. It’s an introductory phrase. Is it common in British English? Yes, it is used widely in both British and American English. It’s a global standard for clear communication.

Usage Notes

Mainly used in professional or academic contexts as a discourse marker. It signals high-level fluency (C1+) and is always followed by a comma in writing. Be careful not to use it for critical information that requires the listener's full focus.

💡

Use commas

Always use a comma after the phrase.

Examples

10
#1 Professional email
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

The contract is attached for your review. As an aside, I hope you enjoyed your vacation!

The contract is attached for your review. As an aside, I hope you enjoyed your vacation!

A polite way to add a personal touch to a business message.

#2 Job interview
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

I have five years of experience in sales. As an aside, I also speak fluent Spanish.

I have five years of experience in sales. As an aside, I also speak fluent Spanish.

Mentioning a valuable secondary skill without distracting from the main point.

#3 Academic presentation
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

The study focused on urban growth. As an aside, the data was collected entirely via mobile apps.

The study focused on urban growth. As an aside, the data was collected entirely via mobile apps.

Sharing a technical detail about the process.

Texting a colleague Common Mistake
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✗ Beside an aside, did you see the email from HR? → ✓ As an aside, did you see the email from HR?

✗ Beside an aside, did you see the email from HR? → ✓ As an aside, did you see the email from HR?

Common preposition error; always use 'As'.

#5 Talking to a friend about a movie
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

The ending was so sad! As an aside, I'm pretty sure the lead actor is actually from my hometown.

The ending was so sad! As an aside, I'm pretty sure the lead actor is actually from my hometown.

Adding a fun fact during a casual review.

#6 Ordering food on an app
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

I'd like the burger with no onions. As an aside, is your kitchen still open for dessert?

I'd like the burger with no onions. As an aside, is your kitchen still open for dessert?

Checking on a secondary request after the main order.

#7 Instagram caption
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Had a great time hiking today! As an aside, these boots are surprisingly comfortable.

Had a great time hiking today! As an aside, these boots are surprisingly comfortable.

Sharing a product recommendation within a personal post.

Explaining a mistake to a boss Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

✗ I made an aside error in the report. → ✓ As an aside, I noticed an error in the report.

✗ I made an aside error in the report. → ✓ As an aside, I noticed an error in the report.

'Aside' is an adverbial phrase, not an adjective for errors.

#9 Humorous observation
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

I finally cleaned my room. As an aside, I found a sandwich from 2022. I didn't eat it.

I finally cleaned my room. As an aside, I found a sandwich from 2022. I didn't eat it.

Using the phrase to deliver a funny secondary detail.

#10 Deep conversation
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>

I'm really happy for you. As an aside, I've always admired your courage.

I'm really happy for you. As an aside, I've always admired your courage.

Sharing a heartfelt secondary thought.

Test Yourself

Fill in the blank with the correct phrase.

The project is on track. __________, the client is very happy.

✓ Correct! ✗ Not quite. Correct answer: As an aside

It introduces a secondary, positive detail.

🎉 Score: /1

Visual Learning Aids

Practice Bank

1 exercises
Fill in the blank with the correct phrase. Fill Blank C1

The project is on track. __________, the client is very happy.

✓ Correct! ✗ Not quite. Correct answer: As an aside

It introduces a secondary, positive detail.

🎉 Score: /1

Frequently Asked Questions

1 questions

No, it sounds unnatural.

Related Phrases

🔄

By the way

synonym

A casual transition.

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