Our vs Their

When to use each in English, with meaning, register, and examples.

Our

High-frequency chunkA1determiner

Their

High-frequency chunkA1determiner
 OurTheir
Pronunciation🇬🇧 /["/ɑː(r)//ˈaʊə(r)/"]/🇺🇸 /["/ɑːr//ˈaʊər/"]/🇬🇧 /["/ðeə(r)/"]/🇺🇸 /["/ðer/"]/
Meaningbelonging to usbelonging to them
Exampleour daughter/dog/houseTheir parties are always fun.
RegisterNeutralNeutral
How commonHigh-frequency chunkHigh-frequency chunk
CEFR levelA1A1
Part of speechdeterminerdeterminer
Collocationsour family, our team, our countrytheir belongings, their house, their opinions, their responsibilities, their choice
Antonymsyour, their, myour, my, his, her
Common mistakesConfused with 'are' in some spoken contexts., Omitting it in contractions like 'we're' instead of 'we are'.'There' used instead of 'their'., Confusing 'their' with 'they're' (they are)., Using 'their' with singular nouns that aren’t non-binary.
Usage notesUsed to show that something belongs to a group that includes the speaker. It's appropriate in most contexts, both spoken and written. Avoid using in very formal writing where other possessive forms might be preferred.Use 'their' to show possession by a group of people. Avoid using 'their' for singular nouns, except in non-binary contexts. It's common in both spoken and written English.

Frequently asked questions: Our vs Their

What's the difference between Our and Their?

Our: belonging to us Their: belonging to them

Are Our and Their the same CEFR level?

Our: A1, Their: A1 on the CEFR scale.

What part of speech are Our and Their?

Our: determiner, Their: determiner.

Can you show an example of each?

Our: our daughter/dog/house Their: Their parties are always fun.

Can I use Our and Their interchangeably?

Not always. Our and Their are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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