avow vs assert

avow and assert both are verbs.

Word	Noun	Adjective	Verb	Adverb
avow	No	No	Yes	No
assert	No	No	Yes	No

As verbs, avow and assert are synonyms defined as:

Other synonyms of avow include affirm, aver, swan, swear, verify.

avow (verb)	assert (verb)
to declare or affirm solemnly and formally as true	postulate positively and assertively
admit openly and bluntly; make no bones about	to declare or affirm solemnly and formally as true
	state categorically
	insist on having one's opinions and rights recognized