reb·o·ant \ˈrebəwənt\adjective Etymology: Latin reboant-, reboans, present participle of reboare to resound, from re- + boare to cry aloud, roar, from Greek boan to cry aloud, shout, of imitative origin : reverberating < gave out a joyous howl, reboant with the sounds of conquest — Adria Langley >