What is the function of the <label> tag in a form?

The function of the tag in a form is to add a label to a form control, which enhances the accessibility and usability of the form. When a label is associated with a form element, such as an input field, it provides a clear description of what information is expected from the user. This is particularly useful for users who rely on assistive technologies, as screen readers can read the label aloud, helping them understand the purpose of the corresponding input.

Using the tag effectively links the label to the specific form control, typically achieved by setting the "for" attribute of the tag to match the "id" of the input element. This association not only improves user experience but also allows users to click the label itself to focus on the related input, making data entry more intuitive. As a result, the use of the tag is an essential practice in web forms for ensuring that they are user-friendly and accessible to all users.