Writing & Editing The longest word is really, really long In the time it takes to recite this word, you could watch ‘Lawrence of Arabia’ and still have a few minutes to spare. By Alan PearcyNov. 21, 2012 SHARE Ragan Insider Premium Content Sorry, Ms. Poppins, despite your valiant effort, you don’t own the world’s longest word. That title goes to some form of protein. The word for it is 189,819 letters long and takes approximately three and a half hours to recite. Don’t believe me? To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.