Terrorise is an action that involves the use of fear or intimidation to coerce someone into doing something. It is often used as a form of psychological warfare and can be seen in many different contexts, such as political, military, and social. The crossword solutions for the term terrorise are THREATEN (8 letters), FRIGHT (6 letters), SCARE (5 letters), and FRIGHTEN (8 letters). All of these words describe the act of terrorising someone, either through verbal threats, physical intimidation, or psychological manipulation.