Being obligation refers to something that one must do or feel obliged to undertake. Synonyms for being obligation include duty, responsibility, commitment, accountability, and requirement. Duty refers to a moral or legal obligation to do something. Responsibility implies being answerable for something or someone. Commitment refers to an obligation that one has voluntarily assumed. Accountability denotes the responsibility to justify one's actions or decisions. Requirement signifies something that is necessary or mandatory. These synonyms are often used interchangeably in everyday language, but each connotes a slightly different aspect of being obligated to do something. Ultimately, being obligation involves an internal or external pressure to fulfill a certain task or duty.