Barrier
[n] a structure or object that impedes free movement
[n] any condition that makes it difficult to make progress or to achieve an objective; "intolerance is a barrier to understanding"
[n] anything serving to maintain separation by obstructing vision or access
Related Information
Related Terms
abatis, advanced work, arch dam, backstop, balistraria, balustrade, bamboo curtain, bank, banquette, bar, barbed-wire entanglement, barbican, barrage, barricade, bartizan, bastion, battlement, bear-trap dam, beaver dam, blank wall, blind alley, blind gut,