to close or block a road etc., using a barricade
to keep someone in (or out), using a blockade, especially ships in a port
A barrier constructed across a road, especially as a military defence
An obstacle, barrier, or bulwark.
A place of confrontation.
To remove from or allow distance.
To delay or obstruct.
To install or position behind a boundary or surface, or in a recess.
To cost money.
To reverse, go backwards.