Have you ever paused while writing and wondered whether to use their, there, or thier? You’re not alone. These words are among the most commonly confused terms in English because they look similar and, in some cases, sound alike.
Although they look and sound similar, they serve completely different purposes.
The confusion becomes even greater because thier is actually a spelling mistake that many people accidentally type when they mean their.
This guide will explain the difference clearly, provide real-world examples, reveal common mistakes, and give you easy memory tricks so you never mix them up again.
Quick Answer: Their vs There vs Thier
- Their shows ownership or possession.
- There refers to a place, location, or existence.
- Thier is incorrect and is usually a misspelling of their.
Quick Example
✅ Their house is beautiful.
✅ The house is over there.
❌ Thier house is beautiful.
What Does “Their” Mean?
Their is a possessive determiner used to show that something belongs to people or a group.
When to Use Their
Use their when talking about ownership, possession, or association.
Examples
- Their car is parked outside.
- The students submitted their assignments.
- The company announced their new policy.
- The children packed their bags.
Key Insight
Whenever you can replace the word with “belongs to them,” their is usually correct.
What Does “There” Mean?
There refers to a place, position, or existence.
It is often used to indicate where something is located or to introduce a sentence.
When to Use There
Use there when referring to:
- A location
- A place
- Existence of something
Examples
- The restaurant is over there.
- There is a problem with the computer.
- We went there last weekend.
- Is there any coffee left?
Key Insight
If you’re talking about a location or saying something exists, use there.
What Does “Thier” Mean?
Thier is not a standard English word.
It is simply a misspelling of their.
Why Does This Mistake Happen?
Many people accidentally reverse the letters “i” and “e” while typing.
Since English contains many words with confusing spelling patterns, this error is extremely common.
Examples
Incorrect:
- Thier dog is friendly.
- I like thier new house.
Correct:
- Their dog is friendly.
- I like their new house.
Key Insight
If you see thier, it should almost always be corrected to their.
Their vs There vs Thier: Key Differences
Quick Comparison
- Their = possession
- There = location or existence
- Thier = spelling error
Comparison Table
| Feature | Their | There | Thier |
|---|---|---|---|
| Meaning | Possession or ownership | Place or existence | Misspelling |
| Grammar Role | Possessive determiner | Adverb, pronoun, noun | Not a valid word |
| Correct English | Yes | Yes | No |
| Example | Their house is big. | The house is there. | ❌ Thier house is big. |
| Usage | Ownership | Location | Error |
Real-World Usage Scenarios
Example 1
❌ Thier car is parked outside.
✅ Their car is parked outside.
🎯 Lesson: Use their when something belongs to someone.
Example 2
❌ Their is a problem.
✅ There is a problem.
🎯 Lesson: Use there when introducing existence.
Example 3
Friend A: Where is the coffee shop?
Friend B: It’s over there.
🎯 Lesson: There refers to a location.
Example 4
Teacher: Did the students submit their homework?
Student: Yes, they submitted their homework yesterday.
🎯 Lesson: Their shows possession.
Example 5
❌ I like thier new website.
✅ I like their new website.
🎯 Lesson: Thier is simply a spelling mistake.
Common Mistakes People Make
Mistake 1: Writing “Thier”
Incorrect:
- Thier dog is cute.
Correct:
- Their dog is cute.
Why It Happens
People often reverse the “i” and “e” while typing quickly.
Mistake 2: Using “Their” Instead of “There”
Incorrect:
- Their is a lot of traffic today.
Correct:
- There is a lot of traffic today.
Why It Happens
Both words sound similar in everyday speech.
Mistake 3: Using “There” for Ownership
Incorrect:
- There books are on the desk.
Correct:
- Their books are on the desk.
Why It Happens
Writers confuse possession with location.
Easy Memory Tricks
Remember “Their”
Their contains the word “heir.”
An heir inherits possessions.
Possessions = Ownership.
Ownership = Their.
Remember “There”
There contains the word “here.”
Both words relate to location.
Location = There.
Remember “Thier”
Think:
Thier = Typo
If you see “thier,” check the spelling immediately.
Expert Insight: Why This Confusion Exists
From a linguistic perspective, their and there are considered homophones in many English accents. Homophones are words that sound alike but have different meanings and spellings.
English spelling evolved from multiple language influences, including Germanic, French, and Latin sources. As a result, pronunciation and spelling do not always follow predictable patterns.
The misspelling thier is especially common because writers subconsciously apply the “i before e” pattern, even though their is an exception.
Understanding the grammatical role of each word is far more reliable than relying solely on pronunciation.
Frequently Asked Questions
Is “thier” a real word?
No. “Thier” is not a correct English word and should usually be replaced with their.
What is the difference between their and there?
Their shows ownership, while there refers to a place or existence.
Why do spell checkers sometimes miss the mistake?
Some writing tools focus on grammar context. If a sentence is poorly structured, errors can occasionally go unnoticed.
Which word is used for possession?
Their is the correct choice for possession.
Conclusion
The difference between their, there, and thier is simple once you understand their roles.Although these words are commonly confused, remembering that their = possession and there = location can help you choose the correct form every time. With a little practice, you’ll never have to second-guess these words again.

