Physical abuse: Intentional use of physical force against the child that results in – or has a high likelihood of resulting in – harm for the child's health, survival, development or dignity. This includes hitting, beating, kicking, shaking, biting, strangling, scalding, burning, poisoning and suffocating. Much physical violence against children in the home is inflicted with the object of punishing. 

Sexual abuse: Sexual abuse refers to the participation of a child in a sexual act aimed toward the physical gratification or the financial profit of the person committing the act. 

Psychological abuse: In 2013, the American Psychiatric Association (APA) added Child Psychological Abuse to the DSM-5, describing it as "nonaccidental verbal or symbolic acts by a child's parent or caregiver that result, or have reasonable potential to result, in significant psychological harm to the child." 

Neglect: Child neglect is the failure of a parent or other person with responsibility for the child, to provide needed food, clothing, shelter, medical care, or supervision to the degree that the child's health, safety or well-being may be threatened with harm. Neglect is also a lack of attention from the people surrounding a child, and the non-provision of the relevant and adequate necessities for the child's survival, which would be a lack of attention, love, and nurturing. 

*Referenced from wikipedia.org