verb

 

to use too much of something or use something badly when there is a limited amount of it

I don't want to waste any more time so let's start.

 

noun

 

bad use a bad use of something useful, such as time or money, when there is a limited amount of it

Meetings are a waste of time.

 

remaining material things that are not wanted, especially what remains after you have used something

household/nuclear waste

 

adjective

 

Waste material is not now needed and can be got rid of.

waste paper