piping

Noun

 * 1) The process of an animal just beginning to break out of its egg; precedes hatching.
 * 2) The sound of musical pipes.
 * 3) An act of making music or noise with pipes.
 * 4) A system of pipes that compose a structure; pipework.
 * the piping of a house
 * 1)  An ornamentation on the edges of a garment; a small cord covered with cloth.
 * 2)  Icing extruded from a piping bag.
 * 3)  A piece cut off to be set or planted; a cutting.
 * 4)  propagation by cuttings
 * 1)  propagation by cuttings

Adjective

 * 1) High-pitched.