Definition of "Abuse" :
noun: cruel or inhumane treatment
"The child showed signs of physical abuse."
noun: improper or excessive use
noun: a rude expression intended to offend or hurt
"When a student made a stupid mistake he spared them no abuse."
verb: change the inherent purpose or function of something
"Don't abuse the system."
verb: use wrongly or improperly or excessively
"Her husband often abuses alcohol."
verb: use foul or abusive language towards
"The actress abused the policeman who gave her a parking ticket."
verb: treat badly
"This boss abuses his workers."