a projecting molding on the underside of a vault or ceiling; may be ornamental or structural
subject to laughter or ridicule; "The satirists ridiculed the plans for a new opera house"; "The students poked fun at the inexperienced teacher"; "His former students roasted the professor at his 60th birthday"
a riblike supporting or strengthening part of an animal or plant
form vertical ribs by knitting; "A ribbed sweater"
any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates)