Waste and wastes are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or it is worthless, defective and of no use.

The term is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable). Examples include municipal solid waste (household trash/refuse), hazardous waste, wastewater (such as sewage, which contains bodily wastes (feces and urine) and surface runoff), radioactive waste, and others.


United Nations Environment Program

According to the Basel Convention,

United Nations Statistics Division, Glossary of Environment Statistics

European Union

Under the Waste Framework Directive, the European Union defines waste as "an object the holder discards, intends to discard or is required to discard."


There are many waste types defined by modern systems of waste management, notably including:

Latest News for: Waste time on


Why our firefighters are ‘wasting’ time on fire hydrants

New Albany Gazette 17 May 2023
“What is going on?” you ask yourself ... The fire truck operator yells on the radio, “CHARGE IT” (turn the water on) ... This story could go on, but hopefully we get the picture ... No time to waste to go back to station to get the truck) and we proceed to complete the daunting task of checking the almost 700 hydrants....

Expert tips to avoid wasting time on unnecessary work meetings

Metro UK 17 May 2023
Wasting precious time that could be spent on actual work is simply not an option ... First, people are more inclined to wrap up the first meeting on time to avoid being late for the second one ... A lot of time can be wasted when meetings are unfocused, so an agenda is necessary to keep things structured and succinct....

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