What does the <strong> tag indicate in HTML?

The tag in HTML is used to indicate that the content inside it holds strong importance. This tag semantically emphasizes the enclosed text, suggesting that the information is critical or noteworthy. In a web browser, text wrapped in the tag is typically displayed in bold, reinforcing its significance visually to the user.

The tag is also important for accessibility as screen readers may read this text differently, alerting users to its significance within the context of the document. Using this tag correctly aids in conveying the intended meaning and importance of content on the web.