Subject markers are grammatical elements used in some languages to indicate the subject of a sentence. They help clarify who is performing the action, making it easier for listeners or readers to understand the sentence's meaning. For example, in languages like Japanese and Korean, subject markers are attached to nouns to denote the subject clearly. In addition to clarifying the subject, these markers can also convey information about the subject's role in the sentence. They can indicate whether the subject is the doer of the action or if it is being affected by it. This feature enhances communication by providing context and reducing ambiguity.