What is a defining feature of synonym groups in search functionality?

A defining feature of synonym groups in search functionality is that they equate various terms in searches for more comprehensive results. This means that when a user enters a search term, the system can recognize and include synonymous terms, ensuring that the search results are not limited to an exact match of the words entered. This enhances the user experience by broadening the scope of search results and increasing the likelihood of finding relevant content.

For instance, if a user searches for "car," the search functionality can also incorporate results for "automobile," making the search yield more relevant documents or items that may be using different terminology but have the same meaning. This capability is especially crucial in environments with varied terminologies, helping users to find what they are looking for more efficiently.

While filtering by popularity, deleting less relevant results, or prioritizing based on user roles are useful features in search functionalities, they do not specifically pertain to the primary purpose of synonym groups, which centers on enriching search results through term equivalency.