What part of speech is the word central?

The word "central" can be a few different parts of speech depending on its use in a sentence:

* Adjective: This is the most common use. It describes something that is located in the middle or center.

* Example: "The city has a central park."

* Noun: It can also be a noun, referring to the middle or core of something.

* Example: "They met at the central of the town."

* Adverb: In rare cases, it can be an adverb meaning "centrally" or "in the center."

* Example: "The information is central to the investigation."

The specific part of speech depends on how the word is used in the sentence.