their
- (third-person plural possessive) belonging to them
Wiktionary
Pronunciation: /ðɛə/ / /ðɛː/ / /ðeɹ/
adv
Etymology: From Old Norse þeirra. Replaced native Old English heora.
- Misspelling of there.
contraction
Etymology: From Old Norse þeirra. Replaced native Old English heora.
- Misspelling of they’re.
det
Etymology: From Old Norse þeirra. Replaced native Old English heora.
- Belonging to, from, of, or relating to, them (plural).
“they will meet tomorrow at their convenience”
“this is probably their cat”
- Belonging to someone (one person, singular), or occasionally to something.
“There's not a man I meet but doth salute me As if I were their well-acquainted friend […]”
“Place the casualty on their back with feet and legs raised—this is called the shock position. [emphasis in original] Once the casualty is positioned, cover them to preserve body heat, but do not overheat.”