The term 'Members of a Certain Den' can be summarized as Scouts, which is a 6 letter word. Scouts are members of the World Organization of the Scout Movement, an international organization that provides educational programs to help young people develop physical, mental, and spiritual strength. The organization was founded in 1907 and has since grown to include over 40 million members in more than 200 countries. Scouts learn important life skills such as leadership, teamwork, and problem-solving, and participate in activities such as camping, hiking, and community service.