management vs governing body

management and governing body both are nouns.

Word	Noun	Adjective	Verb	Adverb
management	Yes	No	No	No
governing body	Yes	No	No	No

As nouns, governing body is a hypernym of management; that is, governing body is a word with a broader meaning than management:

management: those in charge of running a business
governing body: the persons (or committees or departments etc.) who make up a body for the purpose of administering something

Other hypernyms of management include administration, brass, establishment, governance, organisation, organization.

management (noun)	governing body (noun)
the act of managing something	the persons (or committees or departments etc.) who make up a body for the purpose of administering something
those in charge of running a business