The **`<abbr>`** tag is short for _abbreviation_. It is used to write an acronym or an abbreviation. 
# Syntax
```HTML
<abbr title="Full Form"> Abbreviation </abbr>

```

In the above snippet of code, the full form or detail of the abbreviation is passed as a string to the `title` attribute. 

When we hover the mouse over the abbreviation, the browser shows its full form. Some browsers display the abbreviations inline with the rest of the content, and some add a break automatically. A few browsers also underline the abbreviation with a dotted line.

# Examples
In the example below, _HTML_ is an abbreviation for Hypertext Markup Language. The full form of the abbreviation can be seen by hovering over it:

<!DOCTYPE html>
<html>
 
 <body>
 <abbr title="Hypertext Markup Language">HTML</abbr>
 is an abbreviation.
 </body>
 
</html>

codemirror

In the example below, the `<abbr>` tag is used twice. The full forms of the abbreviations can be seen by hovering over them:

<!DOCTYPE html>
<html>
 
 <body>
 The 
 <abbr title="United Nations General Assembly">UNGA</abbr>
 is one of the six principal organs of the 
 <abbr title="United Nations">UN.</abbr>
 </body>
 
</html>

What is the <abbr> element in HTML?

The  tag is short for abbreviation. It is used to write an acronym or an abbreviation. Syntax  Abbreviation    In the above snippet of code, the full form or detail of the abbreviation is passed as a string to the title attribute. When we hover the mouse over the abbreviation, the browser shows its full form. Some browsers display the abbreviations inline with the rest of the content, and some add a break automatically. A few browsers also underline the abbreviation with a dotted line. Examples In the example below, HTML is an abbreviation for Hypertext Markup Language. The full form of the abbreviation can be seen by hovering over it: 