Spanish Meaning: The name Nina is a Spanish baby name. In Spanish the meaning of the name Nina is: Girl. Hebrew Meaning: The name Nina is a Hebrew baby name. In Hebrew the meaning of the name Nina is: Grace.
Chief Master Sergeant (last name) A chief master sergeant in the U.S. Air Force is the highest senior non-commissioned officer rank and directly above senior master sergeant. It is equivalent to the rank of sergeant major in the Army, master gunnery sergeant/sergeant major in the Marines, and master chief petty officer in the Navy/Coast Guard.
Platoon Sergeant. Sergeant First Class is the seventh enlisted rank (E-7) of the UNSC Army, and is a non-commissioned officer rank. It is above Staff Sergeant and below Master Sergeant and First Sergeant. It is equal to the rank of Chief Petty Officer in the UNSC Navy, Master Sergeant in the UNSC Air Force, and Gunnery Sergeant in the UNSC Marine Corps. A Sergeant First Class typically serves as the platoon sergeant for his platoon.