Definition of barricades:
(n) :
A barrier constructed across a road, especially as a military defence
(n) :
An obstacle, barrier, or bulwark.
(v) :
To close or block a road etc., as, or using, a barricade.
(v) :
To keep someone in (or out), using a blockade, especially ships in a port.
(n) :
(figuratively, in the plural) A place of confrontation.
(n) :
(figuratively) Line of people standing behind or closest to the barricade in the pit section of a live music concert.