Haram is a word that means "not allowed" or "forbidden" in Islam. It is like when your parents tell you not to touch something because it's hot and you might get hurt. In Islam, there are certain things that Muslims are not allowed to do because they are not good for us or because they go against the teachings of Allah (God).
For example, eating pork or drinking alcohol is haram in Islam because they can harm our body and mind. Also, stealing or hurting someone else is haram because it hurts others and is not fair. In Islam, we believe that haram things can lead to bad consequences and we should avoid them to keep ourselves and others safe and happy.
It's important to remember that what is haram in Islam is not just based on someone's personal opinion or choice. It is based on the teachings of the Quran (the holy book of Islam) and the sayings and actions of the Prophet Muhammad (peace be upon him). By following what is haram in Islam, we show our love and respect for Allah and strive to live a righteous and fulfilling life.