waste
//weɪst//
Verb
to use something carelessly, extravagantly, or to no purpose
Don't waste water by leaving the tap running.
to fail to make full or good use of something
Don't waste this opportunity to learn from the experts.
to gradually lose strength, health, or flesh; to become weaker
The patient wasted away from the disease.
Noun
unwanted or unusable material, substances, or by-products
The factory produces a lot of chemical waste.
the act of using something carelessly or extravagantly
Buying things you don't need is a waste of money.
a large area of barren, typically uninhabited land
They traveled across the frozen wastes of Antarctica.
Adjective
eliminated or discarded as no longer useful or required
We need to dispose of waste materials properly.
(of an area of land) not used, cultivated, or built on
The factory was built on waste land at the edge of the city.