Relevance refers to the degree to which something is related or applicable to a particular topic or situation. It is a measure of how closely something aligns with or meets the needs of a specific context or audience. For example, in a search engine, relevance is determined by how closely the search results match the user’s search query. In content marketing, relevance is critical to engaging and retaining a target audience. Relevance is also important in communication, where it refers to the appropriateness of a message to the intended recipient or situation. In general, the more relevant something is, the more useful and valuable it is to the user or audience.