A "chartered member" refers to someone who is officially recognized as a member of an organization or group by a charter or official document. Full definition
Think of the Deadpool franchise, then, as charter member of Glib»n' Smarmy. (npr.org)
2006 - Invited to become charter members of Leading Real Estate Companies of the World and its luxury international network Luxury Portfolio (phyllisbrowning.com)
The IDC was created with four charter members in 2011 after Democrats lost their two - year - old majority. (timesunion.com)