fealty vs allegiance

fealty and allegiance both are nouns.

Word	Noun	Adjective	Verb	Adverb
fealty	Yes	No	No	No
allegiance	Yes	No	No	No

As nouns, fealty and allegiance are synonyms defined as:

fealty and allegiance: the loyalty that citizens owe to their country (or subjects to their sovereign)

fealty (noun)	allegiance (noun)
the loyalty that citizens owe to their country (or subjects to their sovereign)	the act of binding yourself (intellectually or emotionally) to a course of action
	the loyalty that citizens owe to their country (or subjects to their sovereign)