1. used as the object of a verb or preposition to refer to two or more people or things previously mentioned or easily identified
Usage: objective case of ‘they’
2. used to refer to a person of unspecified gender
Usage: singular use

Examples

• I saw the children and waved to them.
• The books are on the table; please put them away.
• My parents called me yesterday, and I talked to them for an hour.
• Someone left their keys here, so I’ll return them.
• The dogs were barking, so I fed them.
• If anyone calls, tell them I’ll be back soon.