The Entity name option of Basic Search is the default search option. Selecting the Entity name radio button tells the system to search for words in the title/name of entries. The title/name of an entry will generally be the topic of the entry (e.g., the name of a company, organization or institution, person name, product name, and so on), so this is generally a good search to use if you are looking for a particular listing. This is also a good search to use if you only know part of the entity name you are looking for.
Depending on the eDirectory you are currently searching, the Entity name option may also search additional fields of data: