What is meant by the term 'subject' in grammar?

The term 'subject' in grammar refers to the person, place, thing, or idea that is being discussed or described in a sentence. It is often the noun or pronoun that performs the action of the verb or is described by the predicate. Understanding the subject is fundamental to constructing sentences, as it helps clarify who or what is the focus of the sentence. In a sentence like "The dog barks," "the dog" is the subject, indicating what is executing the action of barking.

This definition highlights the role of the subject in sentence structure, making it essential for students to grasp its function in both simple and complex sentences. By identifying the subject, writers can ensure their sentences are clear and coherent, maintaining effective communication.