Dictionary.net

obstruct access to

impose a blockade on

obstruct access to

impose a blockade on

The shutting up of a place by troops or ships, with the purpose of preventing ingress or egress, or the reception of supplies; as, the blockade of the ports of an enemy.

An obstruction to passage.

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.

Hence, to shut in so as to prevent egress.

To obstruct entrance to or egress from.

The shutting up of a place by troops or ships, with the purpose of preventing ingress or egress, or the reception of supplies; as, the blockade of the ports of an enemy.

An obstruction to passage.

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.

Hence, to shut in so as to prevent egress.

To obstruct entrance to or egress from.

The shutting up of a place, as a port, by ships or troops of an enemy in order to prevent anything from coming in or going out.

To surround and shut up; to block.

The blocking up of a place by surrounding it with troops or by ships.

The shutting up a place by hostile forces.

To stop all access to.

To close to traffic by military or naval force; obstruct; block up.

The closing of a seaport, etc., by hostile forces.

n. [Italian] A state of siege; guarding the approaches to a town or garrison, or the mouth of rivers or harbours, so as to prevent the entrance or landing or provisions, re-inforcements, &c., to be besieged.

A siege carried on by shutting up the place.