n.

1. 管，导管，输送管[C]
   They are laying pipes under the road.

   他们正在铺设路下面的管子。

2. 烟斗[C]
   His father is a pipe-smoker.

   他父亲是抽烟斗的。

3. 管乐器；笛[C]
   He is playing a tune on his pipe.

   他在用笛子吹奏一支曲子。

4. 笛声；鸟鸣声；尖锐的声音[U]
5. 管状器官；呼吸器官[C]
6. （液量单位）最大桶[C]，大酒桶
7. 【口】容易干的事

vt.

1. 用管道输送[H][（+into/to）]
   Water was piped into the village two years ago.

   两年前水由管子通到了村里。

   Gas is piped into all the houses.

   瓦斯由管道输送到各家各户。

2. （用尖声）说话，唱歌；尖声鸣叫
   The woman piped her disapproval.

   那妇人尖声嚷叫不赞成。

3. 用管乐器吹奏
   I'll pipe your favorite song.

   我来吹奏那支你喜欢听的歌。

4. 为……铺设管道
   Our neighborhood will be piped for gas.

   我们这个地区将要铺设煤气管。

5. 为（衣服）滚边；为（糕饼）浇饰花边

vi.

1. 吹奏管乐
2. 尖声叫嚷，尖声鸣叫
   Wind was piping in the woods.

   风在林中呼啸。

n.

1. a tube used to convey water, gas, oil, or other fluids.
   ▸a cavity in cast metal.
2. a device used for smoking tobacco, consisting of a narrow tube with a bowl at one end in which the tobacco is burned, the smoke from which is then drawn into the mouth.
3. a wind instrument consisting of a single tube with holes along its length that are covered by the fingers to produce different notes.
   ▸ (pipes) bagpipes.
   ▸ (pipes) a set of musical pipes joined together, as in pan pipes.
   ▸any of the cylindrical tubes by which notes are produced in an organ.
   ▸a boatswain's whistle.
4. a high-pitched cry or song, especially of a bird.
5. a cylindrical vein of ore or rock, especially one in which diamonds are found.
6. Computing  a command which causes the output from one routine to be the input for another. [short for pipeline.]
7. a large cask for wine, especially as a measure equal to two hogsheads.

v.

1. convey through a pipe or pipes.
2. transmit (music, a programme, a signal, etc.) by wire or cable.
3. play (a tune) on a pipe.
   ▸signal the arrival or departure of (someone) by playing a pipe or pipes:

   the Duke was piped on board.
   ▸use a boatswain's pipe to summon (the crew) to work or a meal.
4. sing or say in a high, shrill voice.
5. decorate with piping.
6. propagate (a pink or similar plant) by taking a cutting at the joint of a stem.