Their or Thier

Learn the correct spelling “Their” and why “Thier” is a common letter-switching error.

Thier

Incorrect spelling - “Thier” is a misspelling caused by reversing the order of “i” and “e.”

"Thier" is a common misspelling of "Their". Always use "Their" when referring to the correct word.

Their

Correct spelling - The proper way to spell this word.

“Their” means belonging to them.

Definition of Their

"Their": “Their” means belonging to them.

This word is commonly used in everyday conversation and writing.

Synonyms for Their

  • belonging
  • owned
  • theirs

Usage Examples

"Correct:" This is their car.

"Correct:" I met their parents.

"Correct:" That is their house.

"Correct:" We visited their office.

"Incorrect:" This is thier car.

"Incorrect:" I met thier parents.

"Incorrect:" That is thier house.

"Incorrect:" We visited thier office.

Notes:

  • IE rule reversed → always T-H-E-I-R.
  • Remember: ‘THE’ + ‘IR’ (not ‘I’ then ‘E’).

Frequently Asked Questions

Q: Correct spelling?

A: Their.

Q: Why not thier?

A: Because the i/e order is wrong.

Q: Meaning?

A: Belonging to them.

Q: Trick?

A: THE + IR — that’s the correct order.

Summary

“Their” is correct; “thier” is a simple letter-order reversal error.