Criminal activity is a broad term that encompasses a variety of illegal activities. ABET, a four letter word, means to encourage or assist someone in doing something wrong. RACKET, a six letter word, refers to an illegal business or scheme. OUTLAWRY, an eight letter word, is the state of being declared an outlaw and outside the protection of the law. Lastly, THEFT, a five letter word, is the act of taking something without permission or legal right. All of these words are related to criminal activity.