What does the term "their" indicate in a sentence?

The term "their" indicates possession in a sentence. It is a possessive pronoun that shows ownership or belonging to a group of people. For example, in the sentence "The students completed their homework," "their" denotes that the homework belongs to the students. This is fundamental in understanding how pronouns function within sentences, as they often replace nouns while conveying relationships of ownership or association. Understanding this concept is crucial for effective communication and comprehension in both writing and speaking.