1. to use something carelessly or without purpose
2. to gradually become weaker or thinner

1. unwanted or unusable material that is thrown away
2. the act of using something carelessly or the result of such use

1. left over and not needed or used

Examples

• Don’t waste water by leaving the tap running.
• The patient began to waste away from the illness.
• Please put your waste in the recycling bin.
• Buying expensive clothes you never wear is a waste of money.
• The factory uses waste heat to generate electricity.
• We sorted the waste paper from the regular trash.
• It’s such a waste that the food spoiled before we could eat it.