barricade vs barrier

barricade and barrier both are nouns.

Word	Noun	Adjective	Verb	Adverb
barricade	Yes	No	Yes	No
barrier	Yes	No	No	No

As nouns, barrier is a hypernym of barricade; that is, barrier is a word with a broader meaning than barricade:

barricade: a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.
barrier: a structure or object that impedes free movement

As nouns, barrier is a hypernym of barricade; that is, barrier is a word with a broader meaning than barricade:

barricade: a barrier (usually thrown up hastily) to impede the advance of an enemy
barrier: a structure or object that impedes free movement

barricade (noun)	barrier (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 structure or object that impedes free movement
a barrier (usually thrown up hastily) to impede the advance of an enemy	any condition that makes it difficult to make progress or to achieve an objective
	anything serving to maintain separation by obstructing vision or access

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