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1. Blocking entrance to and exit from seaports and harbours
   "the blockading ships prevented delivery of munitions"

1. Hinder or prevent the progress or accomplishment of
   "His brother blockaded him at every turn"
   - obstruct, block, hinder, stymie, stymy, embarrass
    
2. Render unsuitable for passage
   "blockade the streets"
   - barricade, block, stop, block off, block up, bar
    
3. Obstruct access to
   - block off
    
4. Impose a blockade on
   - seal off

See also: preventative, preventive

Type of: beleaguer, besiege, block, circumvent, close up, forbid, foreclose, forestall, hem in, impede, jam, obstruct, obturate, occlude, preclude, prevent, surround

Encyclopedia: Blockade