|The Simple English Wiktionary has a definition for: waste.|
There are a number of different types of waste. It can exist as
a solid, liquid, or gas or as waste heat. When released in as a
liquid or gas the wastes can be referred to as emissions. It is
usually strongly linked with pollution. Waste may also be
something that you cannot touch as wasted time or wasted
opportunities. The term waste implies things which have been
used inefficiently or inappropriately. |Wikimedia Commons has
media related to: Waste|