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barrier [barriers]▼◼◼◼noun[UK: ˈbæ.riə(r)] [US: ˈbæ.riər]
sound barrier▼◼◼◼noun[UK: ˈsaʊnd ˈbæ.riə(r)] [US: ˈsaʊnd ˈbæ.riər]
noise barrier▼noun
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