Acronym

====Expansion at first use====
{{more citations needed section|date=January 2015}}
In writing for a broad audience, the words of an acronym are typically written out in full at its first occurrence within a given text. Expansion At First Use (EAFU) benefits readers unfamiliar with the acronym.<ref>{{cite web |last1=Lee |first1=Chelsea |title=An Abbreviations FAQ |url= https://blog.apastyle.org/apastyle/2015/10/an-abbreviations-faq.html#Q2 |access-date=June 3, 2020 |archive-url= https://web.archive.org/web/20200603074708/https://blog.apastyle.org/apastyle/2015/10/an-abbreviations-faq.html#Q2 |archive-date=June 3, 2020 |url-status=live}}</ref>

Another text aid is an abbreviation key which lists and expands all acronyms used, a reference for readers who skipped past the first use. (This is especially important for paper media, where no search utility is available to find the first use.) It also gives students a convenient review list to memorize the important acronyms introduced in a textbook chapter.

Expansion at first use and abbreviation keys originated in the print era, but they are equally useful for [[E-text|electronic text]].