block off vs barricade

block off is not a noun while barricade is a noun.

Word	Noun	Adjective	Verb	Adverb
block off	No	No	Yes	No
barricade	Yes	No	Yes	No

As verbs, block off and barricade are synonyms defined as:

Other synonyms of block off include bar, block, block up, blockade, stop.

As verbs, barricade is a hypernym of block off; that is, barricade is a word with a broader meaning than block off:

Other hypernyms of block off include bar, block, block off, block up, blockade, stop.

block off (noun)	barricade (noun)
	a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.
	a barrier (usually thrown up hastily) to impede the advance of an enemy

block off (verb)	barricade (verb)
obstruct access to	block off with barricades
render unsuitable for passage	prevent access to by barricading
block off the passage through	render unsuitable for passage