What do you receive when you submit a single term for keyword expansion?

When a single term is submitted for keyword expansion, the system analyzes the term and generates a set of highly correlated terms and synonyms that are contextually relevant. This is essential for enhancing search effectiveness, as it broadens the scope of the search by including similar words or phrases that users may also want to consider. By providing this expanded vocabulary, it enables users to discover more information related to their original search intent, ensuring they don't miss relevant data.

The purpose of generating highly correlated terms and synonyms is to optimize the search process, making it more robust and user-friendly. This reflects the way language and meaning often work in tandem, as certain terms are frequently associated with each other in relevant contexts. Such a list encourages a more thorough search, allowing for better insights and analytics based on various related terms.

The other options, while related to information retrieval, do not specifically reflect the outcome of submitting a single term for keyword expansion. For instance, a list of documents would not help in expanding the initial search term itself, while frequencies of terms primarily focus on statistical aspects and do not aid in finding synonyms or related terms. A summary of related documents also doesn't contribute directly to understanding the broader scope of language usage linked to the initial term submitted.