[1][4][7] It has a feature that allows a user to preview an article while positioning the mouse cursor over a link.

[4][8] The site is run by Farlex, Inc., located in Huntingdon Valley, Pennsylvania.

[5][9] Farlex also maintains a companion title, The Free Library, an online library of out-of-copyright classic books as well as a collection of periodicals of over four million articles dating back to 1984, and definition-of.com,[10] a community dictionary of slang and other terms.

It is a free reference website that offers full-text versions of classic literary works by hundreds of authors.

It is a sister site to The Free Dictionary and usage examples in the form of "references in classic literature" taken from the site's collection are used on The Free Dictionary's definition pages.