The "E" In E-1 means "enlisted" though the "1" indicates the paygrade for that posture. The opposite shell out classes are "W" for warrant officers and "O" for commissioned officers. Some enlisted paygrades have two ranks. Britannica Dictionary definition of RANK one [far more rank; most rank] : using a https://www.seoclerk.com/Link-Building/371800/GIGA-SEO-PACKAGE-POWERFUL-BACKLINKS