Added 9 October 2026 reb noun Categories: PeopleRare Words noun ! Definition from WordNet 3.1, Princeton University. More about reb at Wordnik → Where our words come from → `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. Origin Clipping of rebel. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: rebelgraybackjohnnyravercliaceriacvardemandrequire Back to today's word