What part of speech is obligation?

"Obligation" can be a few different parts of speech, depending on its role in the sentence:

* Noun: This is the most common use. It refers to a duty or responsibility.

* Example: "He felt a strong obligation to help his family."

* Adjective: This is less common, but possible. It means "binding or compulsory."

* Example: "The obligation to pay taxes is a legal requirement."

Let me know if you want to see some more examples!