The <acronym> tag in HTML was used to define an acronym, which is a type of abbreviation formed from the initial letters of a phrase, like "NASA" or "HTML." However, the <acronym> tag has been deprecated in HTML5, meaning it is no longer recommended for use, and the <abbr> tag is now used for both acronyms and abbreviations.

Syntax (Deprecated):

<acronym title="Full Form of the Acronym">Acronym</acronym>

Example (Deprecated):

<p><acronym title="HyperText Markup Language">HTML</acronym> is the standard markup language for creating web pages.</p>

In this deprecated example:

• The acronym HTML is wrapped in the <acronym> tag.
• The title attribute specifies the full form "HyperText Markup Language."
• When a user hovers over "HTML," the full form will appear as a tooltip.

Reason for Deprecation:

The <abbr> tag has essentially replaced the <acronym> tag because it serves the same purpose. The distinction between abbreviations and acronyms was deemed unnecessary, so the <abbr> tag now covers both.

Modern Alternative:

Use the <abbr> tag for both acronyms and abbreviations in HTML5:

<p><abbr title="HyperText Markup Language">HTML</abbr> is the standard markup language for creat