plumbing, plumbing system -- (utility consisting of the pipes and fixtures for the distribution of water or gas in a building and for the disposal of sewage)
plumbing, plumbery -- (the occupation of a plumber (installing and repairing pipes and fixtures for water or gas or sewage in a building))
bathymetry, plumbing -- (measuring the depths of the oceans)
Overview of verb plumb
The verb plumb has 4 senses
plumb -- (measure the depth of something)
plumb -- (weight with lead)
plumb -- (examine thoroughly and in great depth)
plumb -- (adjust with a plumb line so as to make vertical)