HTML Tags
HTML <acronym> Tag
The <acronym> tag was used to mark up acronyms, but it is deprecated and obsolete in HTML5 — use <abbr> instead.
What is the <acronym> tag?
The <acronym> element was historically used to mark up an acronym and, via its title attribute, provide the full form. It behaved almost identically to <abbr>.
⚠️
The <acronym> tag is deprecated and obsolete in HTML5. It has been removed from the specification and must not be used in new pages. Browser support is being withdrawn and it may stop working at any time.
Use <abbr> instead
HTML5 consolidated abbreviations and acronyms into a single element, <abbr>. Replace any <acronym> with <abbr> and keep the same title attribute.
<!-- Old (do not use) -->
<acronym title="World Wide Web Consortium">W3C</acronym>
<!-- Modern replacement -->
<abbr title="World Wide Web Consortium">W3C</abbr>See the <abbr> tag reference for full details on the modern, spec-compliant approach.