Which option best describes a Wildcard in a documentation system?

Wildcards are specific characters used in documentation systems that allow users to represent one or more characters within a search term or string. This feature is essential for free-text documentation because it enables more flexible searching and matching of text inputs. For example, if a user inputs a term with a wildcard, the system will return results that include variations of the word or phrase, thereby accommodating different spellings or forms of the word. This functionality is crucial in medical documentation, as it allows for comprehensive data entry and retrieval, enhancing efficiency and accuracy when capturing patient information.

The other options, while pertinent to functionalities found in documentation systems, do not accurately represent what a wildcard does. Pulling in external data typically involves integration tools or APIs, while generating reports requires specialized commands or templates. Creating reminders usually pertains to task management functionalities rather than text searching or documentation.