Domestic abuse isn't always physical. The other kinds of abuse can hurt just as much as physical. They are all wrong, and many are against the law.
Physical abuse is when one person hits, pushes, throws things, smashes things, or threatens to physically hurt the other.
Emotional abuse is making the person feel hurt or bad about themselves. This might be putting the other person down, making them feel stupid or making threats to harm themselves if their partner leaves. It can also be when one person stops the other from seeing their friends or family or is constantly checking up on where they are.
Financial abuse is when one person takes control of the money in the household, and doesn't let the other person have any.
Sexual abuse is when one person makes the other do sexual things that they don't want to do. No one has the right to force someone else into sexual contact - even if they are married.