blockade vs circumvent

blockade is a noun but circumvent is not a noun.

Word	Noun	Adjective	Verb	Adverb
blockade	Yes	No	Yes	No
circumvent	No	No	Yes	No

As verbs, circumvent is a hypernym of blockade; that is, circumvent is a word with a broader meaning than blockade:

Other hypernyms of blockade include beleaguer, besiege, hem in, surround.

blockade (noun)	circumvent (noun)
a war measure that isolates some area of importance to the enemy
prevents access or progress

blockade (verb)	circumvent (verb)
impose a blockade on	avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues)
obstruct access to	beat through cleverness and wit
render unsuitable for passage	surround so as to force to give up
hinder or prevent the progress or accomplishment of