Barricade
A barricade was a physical obstacle that stopped or changed the course of an item or object.

In 2024, B.C. suggested using benches as barricades for a District Processing Center he and others were holed up in. ()

In 2269, James T. Kirk surmised that lava on the mad planet could be diverted with a barricade. ()

In 2287, Kirk clarified that in the phrase Emergency Landing Plan B, the "B" referred to creating a "barricade". ()

In 2367, Beverly Crusher recounted how some crew members of the  had been found "locked in their rooms, barricaded, with weapons piled all around them". ()

In 2375, Benjamin Sisko warned that the Jem'Hadar would be breaking through the barricades and that Starfleet personnel stationed at AR-558 would do well to shrink the number of attackers before they could. ()

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Security technology
Architecture