hearing examiner vs functionary

hearing examiner and functionary both are nouns.

Word	Noun	Adjective	Verb	Adverb
hearing examiner	Yes	No	No	No
functionary	Yes	No	No	No

As nouns, functionary is a hypernym of hearing examiner; that is, functionary is a word with a broader meaning than hearing examiner:

hearing examiner: an official appointed by a government agency to conduct an investigation or administrative hearing so that the agency can exercise its statutory powers
functionary: a worker who holds or is invested with an office

Other hypernyms of hearing examiner include official.

hearing examiner (noun)	functionary (noun)
an official appointed by a government agency to conduct an investigation or administrative hearing so that the agency can exercise its statutory powers	a worker who holds or is invested with an office