A conical peg or pin used to close and open the hole or vent in a container. • An object with a tapering conical form like a tap (etymology 1, noun sense 1); specifically, ellipsis of taproot (“long, tapering root of a plant”). • A hollow device used to control the flow of a fluid, such as an alcoholic beverage from a cask, or a gas or liquid in a pipe. • A procedure that removes fluid from a body cavity; paracentesis. • Liquor drawn through a tap (etymology 1, noun sense 2.2); hence, a certain kind or quality of liquor; also (figurative, informal), a certain kind or quality of any thing. • A device used to listen in secretly on telephone calls or other communications. • A secret interception of telephone calls or other communications using such a device; also, a recording of such a communication. • A situation where a borrowing government authority issues bonds over a period of time, usually at a fixed price, with volumes sold on a particular day dependent on market conditions. • A cylindrical tool used to cut an internal screw thread in a hole, with cutting edges around the lower end and an upper end to which a handle is fitted to turn the tool. • Ellipsis of taphouse or taproom (“place where alcoholic beverages are served on tap”). • A connection made to an electrical or fluid conductor without breaking it; a tapping.