alcohol, drug, solvent, substance (= drugs, etc.)
systematic, widespread
flagrant

prevent, stop
investigate, report
be open to
The legal system is open to abuse.

abuse of
abuse of prisoners

the abuse of power

emotional, physical, psychological, sex, sexual
child, elder (esp. AmE), prisoner, spousal (esp. AmE)
victims of child abuse

human rights abuses
allegations of human rights abuses

alleged, suspected

case
six cases of suspected child abuse

commit
subject sb to
She was subjected to regular sexual abuse.

experience, suffer, take
The child had taken a lot of emotional abuse.

allege, suspect sb of

happen, occur, take place

victim

an allegation of abuse
allegations of child abuse

a perpetrator of abuse
a victim of abuse

verbal
personal, racial (esp. BrE), racist

stream, torrent
He was subjected to a torrent of personal abuse.

hurl, scream, shout, shower sb with, subject sb to
endure
They had to endure continual racist abuse.

heap abuse on sb/sth
Abuse and scorn were heaped on the proposals.

a target for abuse, a target of abuse
The team who lost became a target of abuse for angry fans.

a term of abuse
Calling someone stupid is definitely a term of abuse.