Which shortcut is used to decrease the bullet level in Word?

The shortcut that decreases the bullet level in Word is Shift+Tab. This command is commonly used in various software applications when working with lists or structured data. In the context of a bullet list in Microsoft Word, using Shift+Tab shifts the selected bullet point or list item one level up, effectively promoting it to a higher level within the hierarchy of the list.

When you're working with nested bullet points, each level of indentation generally represents a different hierarchy or sub-list. By pressing Shift+Tab, you efficiently navigate the list structure, reducing the bullet level and organizing your content more clearly.

The other options do not serve this specific purpose. For example, Ctrl+Shift+Tab typically navigates backward through tabs in dialog boxes or browser windows, while Alt+Tab is a shortcut used to switch between open applications. Ctrl+Tab allows cycling through tabs in programs that use tabbed interfaces but does not affect bullet list levels in Word.