blockade vs encirclement

blockade and encirclement both are nouns.

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

As nouns, blockade and encirclement are synonyms defined as:

blockade and encirclement: a war measure that isolates some area of importance to the enemy

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

blockade (verb)	encirclement (verb)
impose a blockade on
obstruct access to
render unsuitable for passage
hinder or prevent the progress or accomplishment of