rhebok UK /ˈɹiː.bɒk/US /ˈɹiː.bɑk/ noun1 •A medium-sized, deerlike South African antelope, Pelea capreolus, having pale-gray, curly fur and straight horns.There are also a whole lot of compounds that use 'bok': rhebok, bontebok, blesbok, gemsbok, rietbok, grysbok, bloubok ... — 2011 formsrheboks