Noun | 1. | ![]() balusters, balustrade, banister, handrail, bannister - a railing at the side of a staircase or balcony to prevent people from falling barricade - a barrier (usually thrown up hastily) to impede the advance of an enemy; "they stormed the barricade" breakwater, groyne, jetty, seawall, bulwark, groin, mole - a protective structure of stone or concrete; extends from shore into the water to prevent a beach from washing away bulwark - a fencelike structure around a deck (usually plural) crash barrier - a strong protective barrier that is erected around a racetrack or in the middle of a dual-lane highway in order to reduce the likelihood of severe accidents dam - a barrier constructed to contain the flow of water or to keep out the sea fender, wing - a barrier that surrounds the wheels of a vehicle to block splashing water or mud; "in Britain they call a fender a wing" hurdle - a light movable barrier that competitors must leap over in certain races movable barrier - a barrier that can be moved to allow passage impedimenta, obstruction, obstructor, obstructer, impediment - any structure that makes progress difficult revetment - a barrier against explosives barricade, roadblock - a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc. starting gate, starting stall - a movable barrier on the starting line of a race course |
2. | ![]() obstacle, obstruction - something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan" ideological barrier - a barrier to cooperation or interaction resulting from conflicting ideologies language barrier - barrier to communication resulting from speaking different languages | |
3. | ![]() bar - a submerged (or partly submerged) ridge in a river or along a shore; "the boat ran aground on a submerged bar in the river" blood-brain barrier - a mechanism that creates a barrier between brain tissues and circulating blood; serves to protect the central nervous system; "the brain was protected from the large molecules of the virus by the blood-brain barrier" curtain - any barrier to communication or vision; "a curtain of secrecy"; "a curtain of trees" mechanism - a natural object resembling a machine in structure or function; "the mechanism of the ear"; "the mechanism of infection" |