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  1. smoke screen

    • n.
      A mass of dense artificial smoke used to conceal military areas or operations from an enemy.;An action or statement used to conceal actual plans or intentions.
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    • IPA[ˈsmōkˌskrēn]


    • n.
      a cloud of smoke created to conceal military operations: troops laid down a smokescreen to cover the rescue of the victims

    Oxford American Dictionary