Sanitation (noun)

1. The provision of facilities and services for the safe and hygienic disposal of waste.
2. The promotion and maintenance of health and cleanliness through the provision of clean water and air, the disposal of waste and sewage, and the control of disease.

Origin:

Late middle english: from latin sanitas, from sanus "healthy".

Examples:

1. The city's sanitation department is responsible for collecting and disposing of the garbage.
2. The sanitation workers were on strike, causing a health hazard in the city.
3. The lack of proper sanitation in the refugee camp led to a outbreak of disease.
4. The sanitation facilities at the camping ground were inadequate and dirty.
5. The sanitation system in the city needed to be upgraded to prevent pollution and disease.