Compulsion is an intense URGE to do something, often against one's will. EXIGENCY, a 8-letter word, is an urgent NEED or demand. CONSTRAINT, a 10-letter word, is the act of limiting or restricting someone or something. OBSESSION, a 9-letter word, is an idea or thought that continually preoccupies or intrudes on a person's mind. INTIMIDATION, a 12-letter word, is the use of fear to make someone do something. COERCION, an 8-letter word, is the act of forcing someone to do something against their will. OBLIGATION, a 10-letter word, is a moral or legal duty to do something. NECESSITY, a 9-letter word, is the quality of being necessary or unavoidable. COMMAND, a 7-letter word, is an order given by someone in authority. MANIA, a 5-letter word, is an excessive enthusiasm or desire for something. FORCE, a 5-letter word, is the use of physical power to make someone do something. ITCH, a 4-letter word, is an uncomfortable feeling on the skin that makes you want to scratch it. DURESS, a 6-letter word, is the use of threats or violence to make someone do something. NEED, a 4-letter word, is a requirement or NECESSITY for something. ENFORCEMENT, an 11-letter word, is the act of making sure that rules or laws are obeyed. MUST, a 4-letter word, is used to express OBLIGATION or NECESSITY. URGE, a 4-letter word, is a strong desire or impulse to do something. All of these words can be used to describe the concept of compulsion.