waste

cause to grow thin or weak

useless or profitless activity; using or expending or consuming thoughtlessly or carelessly

“if the effort brings no compensating gain it is a waste”

spend extravagantly

“waste not, want not”

reduction in the value of an estate caused by act or neglect

the trait of wasting resources

“a life characterized by thriftlessness and waste”

any materials unused and rejected as worthless or unwanted

“they collect the waste once a week”

get rid of

“We waste the dirty water by channeling it into the sewer”

use inefficiently or inappropriately

“waste heat”

run off as waste

“The water wastes back into the ocean”

spend thoughtlessly; throw away

“He wasted his inheritance on his insincere friends”

become physically weaker

get rid of (someone who may be a threat) by killing