The <abbr> tag defines an abbreviation or an acronym, like "Mr.", "Dec.", "ASAP", "ATM".
Tip: An abbreviation and an acronym are both shortened versions of something else. Both are often represented as a series of letters.
Marking up abbreviations can give useful information to browsers, translation systems and search-engines.
<abbr title="...Full Form Here...">Acronym</abbr>
The <abbr title="World Health Organization">WHO</abbr> was founded in 1948.