When it comes to expressing the idea of something being one's obligation, there are many synonyms to choose from. For instance, you might say that something is a duty, a responsibility, or a requirement. Other possible synonyms include burden, charge, and commitment. Depending on the context, you may also opt for words like mandate, covenant, or pledge to convey the idea that something is a binding obligation. No matter which word you choose, the underlying meaning remains the same: that something is necessary or expected of you and that you have a moral or legal obligation to fulfill it.
