<abbr title="fullform" > </abbr>
As the element name says, it is used for abbreviation.
These tag can be used for acronyms and short forms.
The value given to the title attribute will be displayed when the user hovers the mouse over the abbreviated text. See in the examples below.
Example of a abbreviated text
The ISRO is the space agency of government of India.
SBI is an Indian multinational, public sector banking and financial services company.
<p> The <abbr title="Indian Space Research Organisation"> ISRO </abbr> is the space agency of government of India.
The <abbr title="State Bank of India"> SBI </abbr> is an Indian multinational, public sector banking and financial services company.
Acronym Tag. The acronym tag was being used for the short forms which would spell out other words. For example, NASA, ISRO, RADAR etc.
But this tag has been deprecated in HTML5 and
<abbr> </abbr>tag is used.