pipe

noun

a hollow cylinder or cone, as of reed, straw, wood, or metal, in which air vibrates to produce a musical sound, as in an organ or wind instrument
any wind instrument; specif.,
1. bagpipe
2. a small medieval fipple flute played with the left hand while the right hand beats a tabor
a small, shrill whistle, used by a boatswain as in conveying orders to a ship's crew
in full boatswain's pipe
a high, shrill sound, as of a voice, birdcall, etc.
the vocal organs, esp. as used in singing
a long tube of clay, concrete, metal, plastic, etc., for conveying water, gas, oil, etc. or for use in construction
1. a tubular organ or canal of the body
2. the respiratory organs
1. a somewhat cylindrical deposit of ore
2. an opening into a volcano's crater
anything tubular in form
1. a tube with a small bowl at one end, in which tobacco, etc. is smoked
2. enough tobacco, etc. to fill such a bowl
1. a large cask for wine, oil, etc., having a capacity of about two hogsheads, or 126 gallons
2. this volume as a unit of measure
☆ Slang something regarded as easy to accomplish

intransitive verb piped, piping

to play on a pipe
to utter shrill, reedy sounds or tones
Metallurgy to develop longitudinal cavities, as steel sometimes does in ingots and castings during solidification
Naut. to signal a ship's crew by sounding a boatswain's pipe

transitive verb

to play (a tune, etc.) on a pipe
to utter in a shrill, reedy voice or tone
to affect or bring to some condition or place by or as by playing pipes: to pipe the clan to battle
☆ to convey (water, gas, oil, etc.) by means of pipes
☆ to provide with pipes
to trim (a dress, etc.) with piping
to squeeze (icing, dough, or other soft or puréed food) from a pastry bag
Slang to look at or notice
Naut. to call together or alert (the crew), make (a specified call), or signal the arrival aboard or the departure of (someone) by sounding a boatswain's pipe

See pipe in American Heritage Dictionary 4

(pīp)

noun

a. A hollow cylinder or tube used to conduct a liquid, gas, or finely divided solid.
b. A section or piece of such a tube.
a. A device for smoking, consisting of a tube of wood, clay, or other material with a small bowl at one end.
b. An amount of smoking material, such as tobacco, needed to fill the bowl of a pipe; a pipeful.
Informal
a. A tubular part or organ of the body.
b. pipes The passages of the human respiratory system.
Abbr. p.
a. A wine cask having a capacity of 126 gallons or 2 hogsheads (478 liters).
b. This volume as a unit of liquid measure.
Music
a. A tubular wind instrument, such as a flute.
b. Any of the tubes in an organ.
c. pipes A small wind instrument, consisting of tubes of different lengths bound together.
d. pipes A bagpipe.
pipes Informal The vocal cords; the voice, especially as used in singing.
A birdcall.
Nautical A whistle used for signaling crew members: a boatswain's pipe.
Geology
a. A vertical cylindrical vein of ore.
b. One of the vertical veins of eruptive origin in which diamonds are found in South Africa.
Geology An eruptive passageway opening into the crater of a volcano.
Metallurgy A cone-shaped cavity in a steel ingot, formed during cooling by escaping gases.

verb piped piped, pip·ing, pipes

verb, transitive

a. To convey (liquid or gas) by means of pipes.
b. To convey as if by pipes, especially to transmit by wire or cable: piped music into the store.
To provide with pipes or connect with pipes.
a. To play (a tune) on a pipe or pipes.
b. To lead by playing on pipes.
Nautical
a. To signal (crew members) with a boatswain's pipe.
b. To receive aboard or mark the departure of by sounding a boatswain's pipe.
To utter in a shrill reedy tone.
To furnish (a garment or fabric) with piping.
To force through a pastry tube, as frosting onto a cake.
Slang To take a look at; notice.