- a Confederate soldier.
- Mister (used as a title of respect).
- (sometimes capital) US informal a Confederate soldier in the American Civil War (1861–65)Also called: Johnny Reb
- Judaism an honorific title, corresponding to Mr, for those who do not have rabbinic qualifications: usually followed by the person’s forenameReb Dovid
abbreviation of rebel (n.), 1862, in U.S. Civil War context.