1) Craft 2) Plumbing 3) The occupation of a plumber 4) Trade 
• (n.) The business of a plumber. • (n.) A place where plumbing is carried on; lead works.
Plumb'er·y noun [ French plomberie .] 1. The business of a plumber. [ Obsolete] 2. A place where plumbing is carried on; lead works. 
plumbery 1. A plumber's workshop. 2. The work or trade of a plumber.
noun the occupation of a plumber (installing and repairing pipes and fixtures for water or gas or sewage in a building)