1. The banning op documents for public viewing for reason of security of copyright purposes. "embargoed publications"
2. An embargo with academic publications is to prohibit them from being viewed by certain persons for a period of time.
3. To cease imports from another
country, usually due to political differences. This causes the isolation of the countries economy and often causes it to suffer.
Also, a
trade barrier or economic boycott.
4. The prevention of ships leaving port.