n. 1.  a.  A usually improvised structure set up, as across a route of access, to obstruct the passage of an enemy or opponent. See Synonyms at  bulwark. b.  A usually temporary structure set up to restrict or control the movement of people or conveyances: stood behind the barricades watching the parade. 2.  Something that serves as an obstacle; a barrier: "One of those wild minds who saw bridges where others saw barricades" (Patricia Monaghan). tr.v.  bar·ri·cad·ed, bar·ri·cad·ing, bar·ri·cades  1.  To close off or block with a barricade. 2.  To shut (oneself) in by means of a barricade, as for protection or privacy. [French, from barrique, barrel, from Old Provençal barrica, from Vulgar Latin *barrīca; see  EMBARGO.] barri·cad′er n.  | 
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