Articles: a, an & the · AeroEnglish

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PART 01

Discover

Meet today's English in a real situation — no rules yet. Read it once and try to guess the pattern in the words in bold. Underlined words open a short definition.

Yesterday I moved into a new apartment. It’s an old building, but the apartment itself is bright and quiet. There’s a small kitchen, a bedroom, and a tiny balcony.

The kitchen has an oven, a fridge, and a small table. I love the view from the balcony — you can see the whole street from there.

My neighbor is an interesting person. She’s a nurse, and she works at the hospital near the park. Yesterday she brought me a plant for my new home. Plants make an apartment feel like a home.

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Notice the pattern: “a new apartment” (first mention, unknown to the reader) becomes “the apartment” a few lines later — now the reader knows exactly which one.

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PART 02

Learn

Now the rules behind what you just saw — explained simply, with examples. Underlined words open a short definition — hover on desktop, tap on a phone.

Articles are tiny words, but English uses them constantly — almost every noun needs one. The good news: the whole system comes down to one question: does the listener know exactly which one you mean?

The one idea to hold on to

a / an → one thing, but not a specific one — the listener can’t identify exactly which. I saw a dog. (some dog, unknown to the listener)
the → a specific thing — both speaker and listener know which one. The dog is sleeping. (a particular dog we both know about)
no article → general statements, plurals, or uncountable nouns. Dogs are loyal. (dogs in general)

infoNOTE

A common pattern: the first time you mention something, use a/an. Every time after that, use the, because now the listener knows which one you mean.

A vs an

The choice between a and an is about sound, not spelling.

Use a before a consonant sound: a car, a university, a one-way ticket
Use an before a vowel sound: an apple, an hour, an honest man

warningWARNING

University starts with a written vowel but sounds like “yoo-”, a consonant sound — so it’s a university, not ~~an university~~. Hour starts with a silent H, so it sounds like “our” — a vowel sound — so it’s an hour.

The: when both people already know

Use the once something has been identified — by earlier mention, by context, or because there’s only one.

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“I bought a book yesterday. The book is about space.” — the second sentence uses the because we already know which book.

The is also used when there is only one of something, or the situation makes it obvious which one you mean:

The sun is bright today. (there’s only one sun)
Can you close the door? (the door of the room we’re in — obvious which one)
The Prime Minister gave a speech. (a known, unique role)

No article at all

Don’t use a/an or the when you’re speaking generally — plural nouns and uncountable nouns often need nothing at all.

~~The~~ Cats are independent. (cats in general, not specific ones)
I love ~~the~~ music. (music in general)
~~The~~ Life is short. (life in general — no article)

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If you can mentally add “in general” to the sentence and it still makes sense, you probably don’t need an article: Coffee (in general) keeps me awake.

Quick reference

Situation	Article	Example
First mention, one thing, not specific	a / an	I need a pen.
Already mentioned, or only one exists	the	Where’s the pen I gave you?
General idea, plural or uncountable	(none)	Pens are useful.

priority_highIMPORTANT

When in doubt, ask yourself: “Does my listener already know exactly which one?” Yes → the. No, just any one → a/an. Talking in general → no article.

boltQUICK REVIEW

a + consonant sound (a university) · an + vowel sound (an hour)
First mention → a/an · after that (both know which) → the
General ideas, plurals, uncountables → no article: Cats are independent.

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PART 03

Practice

Try it yourself. You'll see right away whether you got it right, plus a short explanation of why.

0 / 4 correct

1. I bought ___ apple and ___ banana at the market.

2. ___ Earth orbits ___ Sun.

3. ___ cats are wonderful pets.

4. I need ___ hour to finish this.

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PART 04

Use It

Now make the language yours in a real task. Use the prompt below — the editor keeps a simple word count, and nothing is saved or graded.

PROMPT

Describe your morning routine in five sentences. Use a/an the first time you mention something, and the every time after that.

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