What part of speech is departure?

"Departure" can be several parts of speech depending on how it's used in a sentence:

* Noun: This is the most common usage, referring to the act of leaving a place.

* Example: "The departure of the train was delayed."

* Verb: This is less common but can be used to describe the act of leaving.

* Example: "The ship departed at dawn."

* Adjective: This is even less common, but it can describe something related to departure.

* Example: "The departure lounge was crowded."

So, the specific part of speech for "departure" depends on its context in the sentence.