- a cylindrical stick, long plug, or stopper for closing an opening through which liquid is drawn, as in a cask; spigot.
- a faucet or cock.
- the liquor drawn through a particular tap.
- British. a taphouse or taproom.
- a tool for cutting screw threads into the cylindrical surface of a round opening.
- Surgery. the withdrawal of fluid: spinal tap.
- a hole made in tapping, as one in a pipe to furnish connection for a branch pipe.
- Electricity. a connection brought out of a winding at some point between its extremities, for controlling the voltage ratio.
- Informal. an act or instance of wiretapping.
- Archaic. a particular kind or quality of drink.
- to draw liquid from (a vessel or container).
- to draw off (liquid) by removing or opening a tap or by piercing a container.
- to draw the tap or plug from or pierce (a cask or other container).
- to penetrate, open up, reach into, etc., for the purpose of using something or drawing something off; begin to use: to tap one's resources.
- to connect into secretly so as to receive the message or signal being transmitted: to tap a telephone wire or telephone.
- to furnish (a cask, container, pipe, etc.) with a tap.
- to cut a screw thread into the surface of (an opening).
- to open outlets from (power lines, highways, pipes, etc.).
- tap into, Informal. to gain access to; become friendly with: The candidate tapped into some wealthy supporters.
- tap off, to remove (liquid, molten metal, etc.) from a keg, furnace, or the like: to tap off slag from a blast furnace.
- on tap,
- ready to be drawn and served, as liquor from a cask.
- furnished with a tap or cock, as a barrel containing liquor.
- Informal.ready for immediate use; available: There are numerous other projects on tap.
Origin of tap2
- to strike (something) lightly and usually repeatedlyto tap the table; to tap on the table
- (tr) to produce by striking in this wayto tap a rhythm
- (tr) to strike lightly with (something)to tap one's finger on the desk
- (intr) to walk with a tapping soundshe tapped across the floor
- (tr) to attach metal or leather reinforcing pieces to (the toe or heel of a shoe)
- a light blow or knock, or the sound made by it
- the metal piece attached to the toe or heel of a shoe used for tap-dancing
- short for tap-dancingSee tap-dancing
- phonetics the contact made between the tip of the tongue and the alveolar ridge as the tongue is flicked upwards in the execution of a flap or vibrates rapidly in the execution of a trill or roll
- a valve by which a fluid flow from a pipe can be controlled by opening and closing an orificeUS and Canadian name: faucet
- a stopper to plug a cask or barrel and enable the contents to be drawn out in a controlled flow
- a particular quality of alcoholic drink, esp when contained in casksan excellent tap
- British short for taproom
- the surgical withdrawal of fluid from a bodily cavitya spinal tap
- Also called: screw tap a tool for cutting female screw threads, consisting of a threaded steel cylinder with longitudinal grooves forming cutting edgesCompare die 2 (def. 2)
- electronics, mainly US and Canadian a connection made at some point between the end terminals of an inductor, resistor, or some other componentUsual Brit name: tapping
- stock exchange
- an issue of a government security released slowly onto the market when its market price reaches a predetermined level
- (as modifier)tap stock; tap issue
- a concealed listening or recording device connected to a telephone or telegraph wire for the purpose of obtaining information secretly
- on tap
- informalready for immediate use
- (of drinks) on draught
- to furnish with a tap
- to draw off with or as if with a tap
- to cut into (a tree) and draw off sap from it
- British informal to ask or beg (someone) for moneyhe tapped me for a fiver
- to connect a tap to (a telephone or telegraph wire)
- to listen in secret to (a telephone message, etc) by means of a tap
- to make a connection to (a pipe, drain, etc)
- to cut a female screw thread in (an object or material) by use of a tap
- to withdraw (fluid) from (a bodily cavity)
- informal (of a sports team or an employer) to make an illicit attempt to recruit (a player or employee bound by an existing contract)
- a Scot word for top 1
Word Origin and History for on tap
"strike lightly," c.1200, from Old French taper "tap, rap, strike," from a Gallo-Romance or Germanic source ultimately imitative of the sound of rapping. Meaning "to designate for some duty or for membership" is recorded from 1952, from notion of a tap on the shoulder. Related: Tapped; tapping.
"stopper, faucet," Old English tæppa, from Proto-Germanic *tappon (cf. Middle Dutch tappe, Dutch tap, Old High German zapfo, German zapfen). Originally a tapering cylindrical peg (hence taproot). Phrase on tap "ready for use" is recorded from late 15c.
"to supply with a tap," Old English tæppian, from source of tap (n.1). Meaning "to draw liquor with a tap" is from mid-15c. Extended sense of "make use of" is first recorded 1570s. Meaning "to listen in secretly" (1869), originally with reference to telegraph wires. Tapped out "broke" is 1940s slang, perhaps from the notion of having tapped all one's acquaintances for loans already (cf. British slang on the tap "begging, making requests for loans," 1932).
"light blow or stroke," late 14c., from tap (v.1). Tap dancer first recorded 1927, from tap (n.) in the sense of "metal plate over the heel of a shoe" (1680s).
"device to listen in secretly on telephone calls," 1923, from tap (v.2) in the "listen secretly" sense.
- The removal of fluid from a body cavity.
- To withdraw fluid from a body cavity, as with a trocar and cannula, hollow needle, or catheter.
- To strike lightly with the finger or a hammerlike instrument, as in percussion or to elicit a tendon reflex.
Idioms and Phrases with on tap
Available for immediate use, ready, as in We have two more trumpeters on tap for the parade. This metaphoric expression alludes to a beverage such as beer that is ready to be drawn from a cask. [Mid-1800s]
see on tap.