Nouns

(n)blockade, encirclementa war measure that isolates some area of importance to the enemy
(n)blockadeprevents access or progress

Verbs

(v)obstruct, blockade, block, hinder, stymie, stymy, embarrasshinder or prevent the progress or accomplishment of“His brother blocked him at every turn”
(v)barricade, block, blockade, stop, block off, block up, barrender unsuitable for passage“block the way”, “barricade the streets”, “stop the busy road”
(v)blockade, block offobstruct access to
(v)blockade, seal offimpose a blockade on