Element Query
An element query is the mechanism in Craft CMS for retrieving collections of elements based on various criteria. You can use element queries in your Twig templates or PHP code to fetch specific content based on parameters like type, ID, slug, custom field values, and more.https://craftquest.io/courses/craft-cms-5-quick-start-guide
Here’s an example element query to fetch the latest 10 entries from the courses section:
{% set entries = craft.entries.section('courses').limit(10).all() %}
Learn more about using element queries for retrieving content in Craft CMS in the Craft CMS Quick-Start Guide