What is the subject of a sentence?

The subject of a sentence is the part that indicates what or whom the sentence is about. It serves as the foundation for the sentence, providing clarity around the entity that the action is directed toward or that is being described. In this context, the subject typically consists of a noun or a pronoun and is essential for determining the verb's relationship within the sentence.

For example, in the sentence "The cat sleeps," "the cat" is the subject because it is the entity about which the sentence is making a statement. This understanding allows readers and writers to grasp the main focus and meaning of the sentence effectively.