insistency vs advocacy

insistency and advocacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
insistency	Yes	No	No	No
advocacy	Yes	No	No	No

As nouns, advocacy is a hypernym of insistency; that is, advocacy is a word with a broader meaning than insistency:

insistency: the act of insisting on something
advocacy: active support of an idea or cause etc.; especially the act of pleading or arguing for something

Other hypernyms of insistency include protagonism.

insistency (noun)	advocacy (noun)
the act of insisting on something	active support of an idea or cause etc.; especially the act of pleading or arguing for something
the state of demanding notice or attention