The head of gid is the second-most-powerful man in the land.
The collection soon expanded to include music by gid Tanner and the Skillet Lickers and Jimmie Rodgers.
Of, in, or from the US armed forces, esp the Army; government issue: GI shoes/ His officious ways are very GI (WWI armed forces)
A member of the US armed forces, esp an enlisted Army soldier serving since or during World War II: The GIs fought furiously to hold Taejon (Armed forces)
To scrub and make trim: They GIed the barracks every Friday night (WWII Army)