What function in Word enables users to search and replace specific text within a document?

The function in Word that enables users to search and replace specific text within a document is known as "Find and Replace." This feature allows users to quickly locate instances of a particular word or phrase and replace them with new text, which is particularly useful for editing long documents or ensuring consistency in terminology throughout the text. It streamlines the editing process by eliminating the need to manually search for words and makes it easier to update content efficiently.

Other functions listed serve different purposes: The Format Painter is used for copying formatting from one part of text to another, the Text Highlight feature allows users to emphasize portions of text through color highlighting, and Spell Check is designed to identify and correct spelling errors within the document. Each of these options enhances document editing and formatting but does not provide the same search and modification capabilities as the Find and Replace function.