A relational term consisting of the letter E, O or W, and the level of pay assigned to that grade. Below is a chart comparing Pay Grade to Rank in the Marine Corps. E-1 Private W-1 Warrant Officer O-1 Second Lieutenant E-2 Private First Class W-2 Chief Warrant Officer O-2 First Lieutenant E-3 Lance Corporal W-3 Chief Warrant Officer O-3 Captain E-4 Corporal W-4 Chief Warrant Officer O-4 Major E-5 Sergeant W-5 Chief Warrant Officer O-5 Lieutenant Colonel E-6 Staff Sergeant O-6 Colonel E-7 Gunnery Sergeant O-7 Brigadier General E-8 Master Sergeant or First Sergeant O-8 Major General E-9 Master Gunnery Sergeant or Sergeant Major O-9 Lieutenant General O-10 General