pipe

[1]	tootle , tweet , skirl , warble , whistle , peep , cheep
[2]	transmit , deliver , channel , conduct , convey , supply
[3]	(US) look at , shriek , shrill , notice , spot , pipe up , note , look at , (Colloq) get a load of
[4]	pipe down , become quieter , quieten down , make less noise , hush (up) , shush (up) , whisper , (Colloq) belt up , shut up
[5]	pipe up , speak (up) , say , raise one's voice , make oneself heard , offer , volunteer

[1]	pipeline , tobacco pipe , tube , duct , hose , line , main , conduit , passage , conveyor , channel
[2]	briar , pipage , piping , meerschaum , corn-cob , calabash , clay pipe , water-pipe , hookah , narghile , chibouk/chibouque , peace-pipe/pipe of peace/calumet , (Colloq) Irish briar , (Brit) hubble-bubble , (US) bong
[3]	pan-pipe , tube , whistle , boatswain's pipe , tooter , horn , wind , wind instrument , woodwind , brass
[4]	organ pipe , pipework