abuse

Cruel or inhumane treatment.

“the child showed signs of physical abuse”

A rude expression intended to offend or hurt.

“when a student made a stupid mistake he spared them no abuse”

Improper or excessive use.

“alcohol abuse”

“the abuse of public funds”

Treat badly.

“This boss abuses his workers”

Use foul or abusive language towards.

“The actress abused the policeman who gave her a parking ticket”

Change the inherent purpose or function of something.

“Don't abuse the system”

Use wrongly or improperly or excessively.

“Her husband often abuses alcohol”

“while she was pregnant, she abused drugs”