[{"Bold_text": "noun", "List Items": ["a projecting rim, collar, or ring on a shaft, pipe, machine housing, etc., cast or formed to give additional strength, stiffness, or supporting area, or to provide a place for the attachment of other objects.", "a broad ridge or pair of ridges projecting from the edge of a rolled metal shape generally at right angles, in order to strengthen or stiffen it.", "a ring or collar, usually provided with holes for bolts, and screwed or welded over the end of a tube or pipe to permit other objects to be attached to it.", "(in plumbing) a plate or flat ring bolted to the flange at the end of a length of pipe to close the end or to connect it with the flange of another such length:blind flange; spectacle flange."]}, {"Bold_text": "verb (used without object)", "List Items": ["to project like, or take the form of, a flange."]}]