baa I. noun orba\ˈba, ˈbaa, ˈbä, ˈbȧ\ (-s) Etymology: imitative : the bleat of a sheep II. intransitive verb orba\“\ (-ed/-ing/-s) : to cry baa : bleat < the black goats and the dirty, gray-white sheep began slowly to amble down the slope, baaing — Nora B. Kubie >