mastery vs subordination

mastery and subordination both are nouns.

Word	Noun	Adjective	Verb	Adverb
mastery	Yes	No	No	No
subordination	Yes	No	No	No

As nouns, mastery and subordination are synonyms defined as:

mastery and subordination: the act of mastering or subordinating someone

mastery (noun)	subordination (noun)
the act of mastering or subordinating someone	the act of mastering or subordinating someone
great skillfulness and knowledge of some subject or activity	the quality of obedient submissiveness
power to dominate or defeat	the grammatical relation of a modifying word or phrase to its head
	the semantic relation of being subordinate or belonging to a lower rank or class
	the state of being subordinate to something