* Noun: This is the most common usage, referring to a feeling of happiness or relaxation after a period of stress or worry.
* Example: "She felt a surge of relief when she finally finished the exam."
* Verb: This usage is less common, meaning "to alleviate or lessen".
* Example: "The new medication relieved his pain."
* Adjective: This usage is even less common, meaning "providing relief".
* Example: "The relief effort provided food and shelter to the victims."
So, the part of speech for "relief" depends on its context in the sentence.