/
ˌbarɪˈkeɪd/
n.
 an improvised barrier erected to obstruct the movement of opposing forces.
v.
 block or defend with a barricade.
Phrase
- man 
(or go to)
 the barricades
 strongly defend something.
Etymology
C16: from Fr., from barrique ‘cask’, from Sp. barrica; rel. to barrel (barrels often being used to build barricades).