waterworks

/W AO1 T ER0 W ER0 K S/
noun
  1. 1

    The water supply system of a town etc., including reservoirs, pumps and pipes.

  2. 2

    Any single facility, such as a filtration plant, within such a system.

  3. 3

    Tears; crying.

    โ€œShe turned on the waterworks when we told her the old man was dead, but she was asking questions about the will soon enough.โ€

  4. 4

    The genitourinary system.

Source: https://en.wiktionary.org/wiki/waterworks