trust busting vs governing

trust busting and governing both are nouns.

Word	Noun	Adjective	Verb	Adverb
trust busting	Yes	No	No	No
governing	Yes	Yes	No	No

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

trust busting: (law) government activities seeking to dissolve corporate trusts and monopolies (especially under the United States antitrust laws)
governing: the act of governing; exercising authority

Other hypernyms of trust busting include administration, governance, government, government activity.

trust busting (noun)	governing (noun)
(law) government activities seeking to dissolve corporate trusts and monopolies (especially under the United States antitrust laws)	the act of governing; exercising authority

trust busting (adjective)	governing (adjective)
	responsible for making and enforcing rules and laws