Simple past tense and past participle of embargo.(verb)
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Use "embargoed" in a sentence
"Also, science press releases are "embargoed" - employees of major press outlets get to see them first, bloggers have to wait."
"The book was treated by HarperCollins as if it were the next Harry Potter - "embargoed" until Oct. 1, the first day of the Supreme Court's fall term -- a total clampdown that made it impossible for anyone to buy the book until Monday morning."
"Last year, they somehow got an early copy of the last Harry Potter into Michiko Kakutani's hands; now reporter Dinitia Smith has broken into S&S/Margaret K. McElderry headquarters to swipe a copy of the "embargoed" Peter Pan in Scarlet."