Thier or Their? Correction & Example Sentences

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It is time to check autocorrect!

Do we say thier or their? Which spelling is correct?

In a nutshell, thier is not a word. Their is the possessive pronoun which means that something belongs to a group of people.

Oftentimes, people get confused between their, they’re and there as they are all pronounced the same way but spelled differently.

They have different uses. Let’s explain the differences and when to use each.

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Thier is a misspelling of the word their, which is why I’ve included it in this list. Thier is not a word! The person may have mistakenly switched the i and e in the word.

To help you remember the correct spelling, think of the word they. Drop the ‘y‘ and add ‘ir’ when creating their.


Their is used to mean something that belongs or relates to a group of people. It is a possessive adjective that works as a determiner before the noun.

Possessive adjectives (or determiners): my, our, your, his, her, its, and their.

It is the third person plural possessive adjective that describes something belonging to them.

For example, we could say:

  • Their books.
  • Their bag.
  • Their food.
  • Their talents.

Example Sentences with Their

  • The babysitter was given the key to their house.
  • The teacher corrected their homework.
  • I’m borrowing their book to read.
  • Did you see their new house?
  • Their car is red.
  • Their kind mother always cooked them a meal.
  • They enjoy going to the park in their free time.
  • Their furniture is unique.
  • I am spending their money.
  • That’s not their dog.


Their can be made possessive by adding an ‘s.’

It can also be used as a possessive pronoun: mine, yours his, her, its, theirs.

We use possessive pronouns in place of a noun to avoid repetition.

For example, “that’s not my book. It’s theirs” (or: it’s their book).

Example Sentences with Theirs

  • The guitar is not yours. It’s theirs.
  • The flowers are theirs.
  • I found some keys. Are they theirs?
  • The tickets are theirs.
  • This is my cat, not theirs.
  • The computer is theirs.
  • This house is not ours. It’s theirs.
  • Are these shoes yours or theirs?
  • They made a cake. I don’t like theirs.
  • This shirt is too big for me. It must be theirs.


There, their and they’re are homophones because they are pronounced the same but spelled differently.

There has many different meanings.

  • It can refer to a place. There is the opposite of here.

For example, “I live over there.”

  • It is also used as a pronoun. It can be used to substitute a noun or a clause.

For example,

“Hello there!”

“Do you want to go to the restaurant here or there?”

  • It can be used as an adjective to modify a noun or pronoun. In this case, there means to reliably support or help someone.

For example, “I will always be there for you.

From this example, we can see that there modifies the pronoun “I” and is therefore considered an adjective.

  • There can also be used for emphasis.

For example, “that man there knows the story.”


They’re is short for “they are.” We contraction is frequently used in written communication.

This is similar to other contracted words; for example, “he is” becomes he’s or “cannot” becomes can’t.

Example Sentences with They’re

  • They’re (they are) going to the cinema for the birthday party.
  • They’re (they are) kind people.
  • They’re (they are) enjoying the good weather.
  • They’re (they are) going to the store later.
  • I think they’re (they are) happy with their new car.
  • We’ve been waiting for them for hours! They’re (they are) so slow!
  • They’re (they are) not here yet.
  • They’re (they are) at home.
  • I hope they’re (they are) having a good time.
  • Do you think they’re (they are) hungry?
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In Conclusion

Thier is not a correct word and a common misspelling of the word “their.”

They’re, there and their are homophones that sound the same but have different meanings.

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Caitriona Maria is an education writer and founder of TPR Teaching, crafting inspiring pieces that promote the importance of developing new skills. For 7 years, she has been committed to providing students with the best learning opportunities possible, both domestically and abroad. Dedicated to unlocking students' potential, Caitriona has taught English in several countries and continues to explore new cultures through her travels.

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