tap /ˈtæp/
 輕打,水龍頭(vt.)輕打,輕敲,敲打出,選擇,裝上嘴子,使流出,開發,召集,分接


 tap
 接點


 tap
 分接頭


 Tap v. t. [imp. & p. p. Tapped p. pr. & vb. n. Tapping.]
 1. To strike with a slight or gentle blow; to touch gently; to rap lightly; to pat; as, to tap one with the hand or a cane.
 2. To put a new sole or heel on; as, to tap shoes.


 Tap, n.
 1. A gentle or slight blow; a light rap; a pat.
 2. A piece of leather fastened upon the bottom of a boot or shoe in repairing or renewing the sole or heel.
 3. pl. Mil. A signal, by drum or trumpet, for extinguishing all lights in soldiers' quarters and retiring to bed, -- usually given about a quarter of an hour after tattoo.


 Tap, n.
 1. A hole or pipe through which liquor is drawn.
 2. A plug or spile for stopping a hole pierced in a cask, or the like; a faucet.
 3. Liquor drawn through a tap; hence, a certain kind or quality of liquor; as, a liquor of the same tap. [Colloq.]
 4. A place where liquor is drawn for drinking; a taproom; a bar. [Colloq.]
 5. Mech. A tool for forming an internal screw, as in a nut, consisting of a hardened steel male screw grooved longitudinally so as to have cutting edges.
 On tap. (a) Ready to be drawn; as, ale on tap. (b) Broached, or furnished with a tap; as, a barrel on tap.
 Plug tap Mech., a screw-cutting tap with a slightly tapering end.
 Tap bolt, a bolt with a head on one end and a thread on the other end, to be screwed into some fixed part, instead of passing through the part and receiving a nut. See Illust. under Bolt.
 Tap cinder Metal., the slag of a puddling furnace.


 Tap, v. i. To strike a gentle blow.


 Tap, v. t.
 1. To pierce so as to let out, or draw off, a fluid; as, to tap a cask, a tree, a tumor,  a keg of beer, etc.
 2. Hence, to draw resources from (a reservoir) in any analogous way; as, to tap someone's knowledge of the Unix system; to tap the treasury.
 3. To draw, or cause to flow, by piercing.
    He has been tapping his liquors.   --Addison.
 4. Mech. To form an internal screw in (anything) by means of a tool called a tap; as, to tap a nut, a pipe, or tubing.

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 tap
      n 1: the sound made by a gentle blow [syn: pat, rap]
      2: a faucet for drawing water from a pipe or cask [syn: {water
         faucet, water tap, spigot, hydrant]
      3: a gentle blow [syn: rap, strike]
      4: a small metal plate that attaches to the toe or heel of a
         shoe (as in tap dancing)
      5: a tool for cutting female (internal) screw threads
      6: a plug for a bunghole in a cask [syn: spigot]
      7: the act of tapping a telephone or telegraph line to get
         information [syn: wiretap]
      8: a light touch or stroke [syn: pat, dab]
      v 1: cut a female screw thread with a tap
      2: draw from or dip into to get something; "tap one's memory";
         "tap a source of money"
      3: strike lightly; "He tapped me on the shoulder" [syn: tip]
      4: draw from; make good use of; "we must exploit the resources
         we are given wisely" [syn: exploit]
      5: tap a telephone or telegraph wire to get information; "The
         FBI was tapping the phone line of the suspected spy"; "Is
         this hotel room bugged?" [syn: wiretap, intercept, bug]
      6: furnish with a tap or spout, so as to be able to draw liquid
         from it; "tap a cask of wine"
      7: make light, repeated taps on a surface; "he was tapping his
         fingers on the table impatiently" [syn: rap, knock, pink]
      8: walk with a tapping sound
      9: dance and make rhythmic clicking sounds by means of metal
         plates nailed to the sole of the dance shoes; "Glover
         tapdances better than anybody" [syn: tapdance]
      10: draw (liquor) from a tap; "tap beer in a bar"
      11: pierce in order to draw a liquid from; "tap a maple tree for
          its syrup"; "tap a keg of beer"
      12: make a solicitation or entreaty for something; request
          urgently or persistently; "Henry IV solicited the Pope
          for a divorce"; "My neighbor keeps soliciting money for
          different charities" [syn: solicit, beg]
      [also: tapping, tapped]