The Query Suggestion API, now available in Elastic App Search, enhances search experiences by suggesting strong queries as users type, helping them find the right words and improving result relevance. This is particularly useful when users struggle to remember exact names, such as in the example of searching for Zion National Park. The API suggests possible matches like "zion" when a user inputs a vague query like "zeyeon," guiding them toward effective searches. Along with other tools like Synonyms, Relevance Tuning, and Curations, which refine search results by grouping similar terms, boosting relevance based on field values, and managing query results, this API is part of a comprehensive suite designed to optimize search functionality. These features are accessible through API and user-friendly dashboards, allowing for deep relevance tuning and enhanced search capabilities. Elastic offers a 14-day free trial to explore these features, preloaded with a National Parks data set, enabling users to experiment before integrating their data.