A postposition is a type of grammatical marker that follows a noun or pronoun to indicate its relationship to other words in a sentence. Unlike prepositions, which come before the noun, postpositions are placed after the noun. They are commonly found in languages such as Japanese and Korean, where they help convey meaning and clarify the role of the noun in the sentence. In many languages that use postpositions, they can indicate various relationships, such as location, direction, or possession. For example, in Hindi, the postposition "से" (se) means "from" and is used after the noun to show the source of an action. Understanding postpositions is essential for grasping the structure and meaning of sentences in these languages.