Difference between Obstruct and Blockade

OBSTRUCT vs BLOCKADE: NOUN

A war measure that isolates some area of importance to the enemy
Prevents access or progress
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.
The forces used to effect this isolation.
Hence A hindrance to progress or action caused by obstructions of any kind.
The shutting up of a place by troops or ships, with the purpose of preventing ingress or egress, or the reception of supplies.
An obstruction to passage.
Interference with transmission of a physiological signal, or a physiological reaction.
See under Raise.
Preventing an opponent's pawn moving by placing a piece in front of it
The ships or other forces used to effect a naval blockade.
By extension, any form of formal isolation of something, especially with the force of law or arms.
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.
The physical blocking or surrounding of a place, especially a port, in order to prevent commerce and traffic in or out.

Block passage through
Hinder or prevent the progress or accomplishment of
To block or fill (a passage) with obstacles or an obstacle. See Synonyms at block.
To get in the way of so as to hide from sight.
Shut out from view or get in the way so as to hide from sight

To block up; to stop up or close, as a way or passage; to place an obstacle in, or fill with obstacles or impediments that prevent or hinder passing
To be, or come, in the way of; to hinder from passing; to stop; to impede; to retard
To be or get in the way of (a view or something to be seen). : block.
To block or fill (a passage or opening) with obstacles or an obstacle.
To impede, retard, or interfere with; hinder: : hinder.

To obstruct entrance to or egress from.
Hence, to shut in so as to prevent egress.
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.
To set up a blockade against.

Synonyms To bar, barricade, blockade, arrest, clog, choke, dam up, embarrass, See obstacle.
To hinder from passing; stop; impede in any way; check.
To block up; stop up or close, as a way or passage; fill with obstacles or impediments that prevent passing.
To retard; interrupt; delay: as, progress is often obstructed by difficulties, though not entirely stopped.

Derail, Obstruction, Disrupt, Interfere, Impeding, Close up, Stymy, Jam, Blockade, Block, Occlude, Embarrass, Stymie, Hinder, Impede

Blockage, Siege, Embargo, Stymy, Seal off, Block up, Block off, Bar, Hinder, Embarrass, Stymie, Block, Obstruct, Encirclement, Barricade

Thwart, Undermine, Disturb, Derail, Disrupt, Impeding, Close up, Jam, Blockade, Block, Occlude, Embarrass, Stymie, Hinder, Impede

Ban, Logjam, Closure, Isolation, Curfew, Blockage, Siege, Bar, Hinder, Embarrass, Stymie, Block, Obstruct, Encirclement, Barricade

Located so not to obstruct vehicle sight lines.
Remain calm and do not obstruct emergency personnel.
It did not have to obstruct its investigation.
Vegetation cannot obstruct views to signs and billboards.
What can obstruct galaxies spinning in one direction in a certain field will necessarily also obstruct galaxies spinning in the opposite way.
Halsbury defines contempt as consisting of words spoken or written which obstruct or tend to obstruct the administration of justice.
In essence, the Bureau became an active participant in a conspiracy to obstruct justice and obstruct Congress.
The project will obstruct or partially obstruct publicly accessible views of the scenic resource.
The event shall not obstruct safe vehicular and pedestrian circulation, nor obstruct access by emergency service providers.
This definition includes threats to obstruct, as well as attempts to obstruct, in addition to actually taking actions to obstruct.

The Allies lift their naval blockade of Turkey.
ADCC, and blockade of Fcu03b3RI abrogates this inhibition.
Uablc for failyre to properly notify a blockade.
For Our Russian Brothers: Against the Starvation Blockade.
Immunogenic chemotherapy sensitizes tumors to checkpoint blockade therapy.
Potentiates NM blockade, both depolarising and non depolarisingagents.
Checkpoint blockade has demonstrated increased clinical response rates relative to other treatment options; however, many patients fail to achieve a response to checkpoint blockade.
If USA were to institute a blockade to force Cuba to do this such action would, of course, amount to a classic economic blockade.
The USS Banshee was among the blockade runners that attempted to evade the Union blockade of the Confederate coast.
The Union blockade of Confederate ports forced blockade runners to use smaller and more innocuous ports such as Bayport.