A sense of obligation can be described using many different synonyms depending on the context or situation. One such synonym is responsibility, which refers to an individual's duty or obligation to perform a certain task or take care of something or someone. Another synonym for a sense of obligation is duty, which is similar to responsibility but emphasizes a moral or legal obligation to fulfill a task or take action. Similarly, commitment is another synonym that refers to a personal obligation to fulfill a promise or obligation made to oneself or others. The sense of obligation can also be described as a sense of duty, accountability, or indebtedness, emphasizing the responsibility one has towards someone or something.