water system

Noun water system has 2 senses

• water system(n = noun.object) - a river and all of its tributaries;
is a kind of scheme, system
has parts: river

• water system(n = noun.artifact) water, water supply - a facility that provides a source of water; "the town debated the purification of the water supply"; "first you have to cut off the water"
is a kind of facility, installation
is a part of base, infrastructure
has parts: artificial lake, man-made lake, reservoir, water main