Reb Common

`Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms

"The local historian explained that while Federal troops called Johnny a reb, they affectionately nicknamed him Greyback because of his faded blue coat."

A Confederate soldier.

"The military unit deployed advanced reb systems to disrupt enemy communications during the exercise."

Shortened form of Rebbe.

Abbreviation of Rebel.

electronic warfare and related techniques, equipment, or troops.