Imposition is a term that can refer to a variety of different concepts. TAX (3 letters) is a financial charge imposed by a government on its citizens, while INTRUSION (9 letters) is an unwelcome or unauthorized entry into a place or situation. IMPOSTURE (9 letters) is the act of pretending to be someone else, DUTY (4 letters) is an obligation to do something, DECEPTION (9 letters) is the act of deceiving someone, DEMAND (6 letters) is a strong request for something, Burden (6 letters) is a heavy load or responsibility, LEVY (4 letters) is a TAX imposed by a government, and INFLICTION (10 letters) is the act of causing harm or suffering. All of these terms are related to the concept of imposition.