Abuse is not normal and never ok. Being abused means a person is being deliberately hurt by someone else.
It can vary from the seemingly trivial act of not treating someone with dignity and respect - to extreme punishment, cruelty or torture.
The commonly recognised forms of abuse are Physical, Sexual, Financial, Psychological, Discriminatory, Neglect or acts of omission, Organisational, Self Neglect, Domestic Abuse and Modern Slavery.
More on types of abuse