nonviolence vs direct action

nonviolence and direct action both are nouns.

Word	Noun	Adjective	Verb	Adverb
nonviolence	Yes	No	No	No
direct action	Yes	No	No	No

As nouns, direct action is a hypernym of nonviolence; that is, direct action is a word with a broader meaning than nonviolence:

nonviolence: peaceful resistance to a government by fasting or refusing to cooperate
direct action: a protest action by labor or minority groups to obtain their demands

nonviolence (noun)	direct action (noun)
peaceful resistance to a government by fasting or refusing to cooperate	a protest action by labor or minority groups to obtain their demands