the act of using force or the threat of force to stop the movement of people or goods into or out of a country or area, or the people or objects used to prevent such movement:

a situation in which a group of people prevent goods or people entering or leaving a place as a way of showing a government or large organization that they do not agree with its decisions:

a situation in which one country refuses to trade with another country:

to prevent goods or people entering or leaving a place, especially as a way of showing disagreement with a government or large organization: