We found 3 dictionaries that define the word water systems:

General (3 matching dictionaries)

1. water systems: Merriam-Webster
2. water systems: Collins English Dictionary
3. water systems: Vocabulary.com

(Note: See water_system as well.)

Definitions from Wikipedia (Water system) ▸ noun:  Water system refers to a water supply network. ▸ Also see water_system ▸ Words similar to water systems ▸ Usage examples for water systems ▸ Idioms related to water systems ▸ Wikipedia articles (New!) ▸ Words that often appear near water systems ▸ Rhymes of water systems ▸ Invented words related to water systems