<p><strong>Noun</strong></p><ul><li>a structure, usually vertical, containing a passage or flue by which the smoke, gases, etc., of a fire or furnace are carried off and by means of which a draft is created.</li><li>the part of such a structure that rises above a roof.</li><li>Now Rare. the smokestack or funnel of a locomotive, steamship, etc.</li><li>a tube, usually of glass, surrounding the flame of a lamp to promote combustion and keep the flame steady.</li><li>Geology. the vent of a volcano.</li><li>a narrow vertical fissure between two rock faces or in a rock formation.</li><li>Mining. a nearly vertical cylindrical oreshoot.</li><li>British Dialect. fireplace.</li></ul>