The grammatical subject of a sentence or clause is a noun, a group of words acting as a noun, or a pronoun. The subject names whatever is asserted by the verb. Usually, the subject precedes the verb, as in She walked to work.

The subject is a grammatical term used to describe the nouns, pronouns, and noun phrases that occur before the verb in a sentence. Thus, the subject describes a position in the sentence.

In grammar, the subject is the part of a sentence or clause that indicates who or what the sentence is about, often performing the action of the verb.