embargo
US /ɪmˈbɑːr.ɡoʊ/
UK /ɪmˈbɑːr.ɡoʊ/

1.
an official ban on trade or other commercial activity with a particular country.
:
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The government imposed an embargo on arms sales to the region.
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The trade embargo severely affected the country's economy.
2.
a temporary ban on the publication or announcement of information.
:
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The news agency lifted the embargo on the sensitive report.
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Journalists often receive information under a strict embargo until a certain time.