* Noun: When it refers to a feeling of great pleasure or happiness.
* *Example:* "The children expressed their delight at the surprise party."
* Verb: When it means to give great pleasure or happiness.
* *Example:* "The beautiful sunset delighted the onlookers."
* Adjective: When it describes something that gives pleasure or happiness.
* *Example:* "She gave a delight smile."
So, to know the part of speech, you have to look at how the word is being used in the sentence.