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Used as the object of a verb or preposition to refer to a group of people or things previously mentioned or easily identified.
The teacher gave them a lot of homework.
The manager will meet with them to discuss the project.
Often used as an object pronoun.
Used to refer to a group of people in a general or indefinite sense.
I heard them talking about the party.
Do you think they'll invite them to the wedding?
Remember that 'them' is a plural pronoun and must be used with plural verbs.
Use 'them' as an object pronoun to refer to a group of people or things.
Old English 'hēm', 'them', from Proto-Germanic '*hem', from Proto-Indo-European root *ke-.
In modern English, 'them' is used as both a direct and indirect object pronoun.