What part of speech is chief?

"Chief" can be several parts of speech depending on its context:

* Adjective: Describing something as the most important or highest in rank.

* Example: "The chief concern is safety."

* Noun: A leader or head of a group, organization, or department.

* Example: "The chief gave a speech."

* Verb: To be in charge of something.

* Example: "He chiefed the project." (Less common usage)

Therefore, to determine the part of speech of "chief", you need to examine how it is used in a sentence.