[{"Bold_text": "noun", "List Items": ["a projecting part, usually rounded, forming the handle of a door, drawer, or the like.", "a rounded lump or protuberance on the surface or at the end of something, as a knot on a tree trunk.", "Architecture.an ornamental boss, as of carved work.", "a rounded hill, mountain, or elevation on a ridge."]}, {"Bold_text": "verb (used with object)", "List Items": ["to produce a knob on.", "to furnish with a knob.", "(in stone cutting) to knock off (excess stone) preparatory to dressing; knobble ;skiffle."]}]