abuse

nouns

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"; "they yelled insults at the visiting team"
improper or excessive use
"alcohol abuse"; "the abuse of public funds"

verbs

treat badly
"This boss abuses his workers"; "She is always stepping on others to get ahead"
is derived from
is derived from
change the inherent purpose or function of something
"Don't abuse the system"; "The director of the factory misused the funds intended for the health care of his workers"
use foul or abusive language towards
"The actress abused the policeman who gave her a parking ticket"; "The angry mother shouted at the teacher"
is derived from
is derived from
use wrongly or improperly or excessively
"Her husband often abuses alcohol"; "while she was pregnant, she abused drugs"
is a type of (narrower)
use up, consume fully
"The legislature expended its time on school questions"