1. the isolation of a nation, area, city, or harbor by hostile ships or forces in order to prevent the entrance and exit of traffic and commerce.
2. the forces used to effect this isolation.
3. to set up a blockade against. see synonyms at besiege.

1. the physical blocking or surrounding of a place, especially a port, in order to prevent commerce and traffic in or out.
2. by extension, any form of formal isolation of something, especially with the force of law or arms.
3. the ships or other forces used to effect a naval blockade.
4. preventing an opponent's pawn moving by placing a piece in front of it
5. to create a blockade against.

1. the shutting up of a place by troops or ships, with the purpose of preventing ingress or egress, or the reception of supplies.
2. an obstruction to passage.
3. interference with transmission of a physiological signal, or a physiological reaction.
4. to shut up, as a town or fortress, by investing it with troops or vessels or war for the purpose of preventing ingress or egress, or the introduction of supplies. see note under blockade, n.
5. hence, to shut in so as to prevent egress.
6. to obstruct entrance to or egress from.

1. to subject to a blockade; prevent ingress or egress from by warlike means.
2. hence to shut in by obstacles of any kind; block; obstruct.
3. the shutting up of a place, particularly a port, harbor, or line of coast, by hostile ships or troops, so as to stop all ingress or egress, and to hinder the entrance of supplies of provisions, ammunition, or reinforcements.
4. hence A hindrance to progress or action caused by obstructions of any kind.

1. obstruct access to
2. render unsuitable for passage
3. hinder or prevent the progress or accomplishment of
4. a war measure that isolates some area of importance to the enemy
5. prevents access or progress
6. impose a blockade on