Definition of their in English:

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Pronunciation: /ðɛː/

possessive determiner

1Belonging to or associated with the people or things previously mentioned or easily identified: parents keen to help their children
More example sentences
  • It is ghastly for those who tried so hard to make the model work and who have now lost their jobs.
  • They all wanted to show their grief for the loss of a girl whose life touched so many.
  • People came out because they felt the power to change the world was in their own hands.
1.1Belonging to or associated with a person of unspecified sex: she heard someone blow their nose loudly
More example sentences
  • Anyone who wants to voice their displeasure over that lot has to do a lot of voicing.
  • Why would anyone for the sake of their ego want to change the structure of what is going on?
  • I am once again reminded, how wrong it is to judge a person by the colour of their skin.
2 (Their) Used in titles: a double portrait of Their Majesties
More example sentences
  • Their Majesties were welcomed by Her Majesty The Queen and His Royal Highness The Duke of Edinburgh at the Grand Entrance to Buckingham Palace in London.
  • Their Royal Highnesses arrived shortly after 3.30pm and were introduced to several prominent Members of Parliament, local councillors and leaders.
  • We were privileged and delighted to receive Their Royal Highnesses The Prince of Wales and The Duchess of Cornwall as official guests on Thursday 24 July.


1 Do not confuse their and there: their is a possessive determiner, used for example in they all tried to hide their faces and said nothing, while there is an adverb of place or position, as in I took a trip up there last week, and is used in phrases such as there is/are: we are aware there are problems. 2 On the use of their in the singular to mean ‘his or her’, see they (usage).


Middle English: from Old Norse their(r)a 'of them', genitive plural of the demonstrative ; related to them and they.

Words that rhyme with their

affair, affaire, air, Altair, Althusser, Anvers, Apollinaire, Astaire, aware, Ayer, Ayr, bare, bear, bêche-de-mer, beware, billionaire, Blair, blare, Bonaire, cafetière, care, chair, chargé d'affaires, chemin de fer, Cher, Clair, Claire, Clare, commissionaire, compare, concessionaire, cordon sanitaire, couvert, Daguerre, dare, debonair, declare, derrière, despair, doctrinaire, éclair, e'er, elsewhere, ensnare, ere, extraordinaire, Eyre, fair, fare, fayre, Finisterre, flair, flare, Folies-Bergère, forbear, forswear, foursquare, glair, glare, hair, hare, heir, Herr, impair, jardinière, Khmer, Kildare, La Bruyère, lair, laissez-faire, legionnaire, luminaire, mal de mer, mare, mayor, meunière, mid-air, millionaire, misère, Mon-Khmer, multimillionaire, ne'er, Niger, nom de guerre, outstare, outwear, pair, pare, parterre, pear, père, pied-à-terre, Pierre, plein-air, prayer, questionnaire, rare, ready-to-wear, rivière, Rosslare, Santander, savoir faire, scare, secretaire, share, snare, solitaire, Soufrière, spare, square, stair, stare, surface-to-air, swear, Tailleferre, tare, tear, there, they're, vin ordinaire, Voltaire, ware, wear, Weston-super-Mare, where, yeah

For editors and proofreaders

Line breaks: their

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