worry vs encumbrance

worry and encumbrance both are nouns.

Word	Noun	Adjective	Verb	Adverb
worry	Yes	No	Yes	No
encumbrance	Yes	No	No	No

As nouns, encumbrance is a hyponym of worry; that is, encumbrance is a word with a more specific, narrower meaning than worry:

Other hyponyms of worry include bugaboo, burden, incumbrance, load, onus, business.

worry (noun)	encumbrance (noun)
something or someone that causes anxiety; a source of unhappiness	any obstruction that impedes or is burdensome
a strong feeling of anxiety	an onerous or difficult concern
	a charge against property (as a lien or mortgage)

worry (verb)	encumbrance (verb)
lacerate by biting
touch or rub constantly
be worried, concerned, anxious, troubled, or uneasy
disturb the peace of mind of; afflict with mental agitation or distress
be concerned with
be on the mind of