I selected 82 uncommon and rare English words from the Advanced GRE vocabulary list by Magoosh that only appeared in COCA database 100 times or less (extremely rare). The corpus contains more than one billion words of text (25+ million words each year 1990-2019) from eight genres: spoken, fiction, popular magazines, newspapers, academic texts, and (with the update in March 2020): TV and Movies subtitles, blogs, and other web pages.