blockade
noun.
a war measure that isolates some area of importance to the enemy
Synonym: encirclement
noun.
prevents access or progress
verb.
hinder or prevent the progress or accomplishment of
His brother blocked him at every turn
Synonym: block, embarrass, hinder, obstruct, stymie, stymy
verb.
render unsuitable for passage
block the way|barricade the streets|stop the busy road
Synonym: stop, block up, block off, block, barricade, bar
verb.
obstruct access to
Synonym: block off
verb.
impose a blockade on
Synonym: seal off