Syntax refers to the set of rules that govern the structure of sentences in a language. It dictates how words combine to form phrases and sentences, ensuring clarity and meaning. For example, in English, a typical sentence follows a subject-verb-object order, such as in the sentence "The cat (subject) chased (verb) the mouse (object)." Understanding syntax is crucial for effective communication. It helps speakers and writers convey their thoughts clearly and allows listeners and readers to interpret messages accurately. Different languages have unique syntactic rules, making the study of syntax essential for linguists and language learners alike.