The plural of the word ‘that’ is ‘those.’
In English, ‘that’ is a demonstrative pronoun used to indicate a specific thing or person, typically singular. When you refer to multiple items or people, ‘those’ is used instead. This change not only reflects the number being referred to but also maintains clarity in communication. For example, you might say ‘that book’ for one, and ‘those books’ for multiple. Understanding this distinction helps in proper sentence construction and enhances your language skills.