incumbrance vs concern

incumbrance and concern both are nouns.

Word	Noun	Adjective	Verb	Adverb
incumbrance	Yes	No	No	No
concern	Yes	No	Yes	No

As nouns, concern is a hypernym of incumbrance; that is, concern is a word with a broader meaning than incumbrance:

Other hypernyms of incumbrance include headache, vexation, worry.

incumbrance (noun)	concern (noun)
any obstruction that impedes or is burdensome	something that interests you because it is important or affects you
an onerous or difficult concern	something or someone that causes anxiety; a source of unhappiness
a charge against property (as a lien or mortgage)	a feeling of sympathy for someone or something
	an anxious feeling
	a commercial or industrial enterprise and the people who constitute it

incumbrance (verb)	concern (verb)
	be relevant to
	be on the mind of