Simple past tense and past participle of blockade.(verb)
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Use "blockaded" in a sentence
"With a skeptical eye but enormous tenderness, novelist and screenwriter David Benioff dreams up his grandfather's wartime exploits in blockaded Leningrad ....."
"The coast of North Carolina, which has never been thoroughly blockaded, is swarming with privateers, who prey upon Northern commerce, and take their prizes into port without molestation."
"Prime minister David Cameron was a little nearer the mark when he called the blockaded Gaza"