MrXHellboy

Wrap abbreviations for search engine optimization and support other applications
Using abbreviations on your website is not a bad idea since people will get tired of reading the same over and over again. 
Unfortunately, search engines and other application which might render your website are not that great with abbreviations. 
Reading software, spelling checkers, language translations or other applications might fall over them.
By wrapping abbreviations in the therefor “abbr” HTML element, along with a title(description), applications relying on the structure of your site, can do their job just fine.
Search engines will read the abbreviation and the description which increases the chance for more relevance by specific terms used on search engines like Google.
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Abbreviations for WordPress

Wrap abbreviations for search engine optimization and support other applications

Whodunit

Jb Audras

Guillaume TURPIN

The goal of this plugin is to provide expansions or definitions for abbreviations by using the <code>abbr</code> HTML element. It helps to make your website compliant to the <a href="https://www.w3.org/WAI/WCAG21/Understanding/abbreviations.html" rel="nofollow ugc">success criterion 3.1.4 of Web Content Accessibility Guidelines (WCAG)</a>.
It is always appropriate to use the <code>abbr</code> element for any abbreviation, including acronyms and initialisms. This HTML element helps to make sure the abbreviation is understood by assistive technologies, by informing the user agent that the characters are an abbreviation, and by providing its meaning using the <code>title</code> attribute.
This plugin adds a new <code>abr</code> format button in the formatting toolbar of the block editor.

Abbreviation Button for the Block Editor

Add an abbreviation format button to the formatting toolbar in the block editor.

Abbreviations for WordPress vs Abbreviation Button for the Block Editor