The term 'Horrible Acts' can be summarized by the crossword solution of 'EVIL, ' which is a four-letter word. EVIL is defined as something that is morally wrong or bad, causing harm or injury to others. It is often used to describe acts of violence, cruelty, and injustice. Horrible Acts are those that are considered to be particularly heinous or reprehensible, and can include physical, psychological, or emotional abuse.