Subject
The subject can refer to different things depending on the context. In grammar, the subject is the person, thing, or concept that performs the action or is the focus of the sentence. In school, the subject often refers to the specific topic or area of study, such as math, science, history, or literature. In a conversation, the subject can refer to the main topic being discussed or the point of focus.
If you have a specific question about a subject, feel free to ask and I'll do my best to help explain it to you!