Blockade (noun)

1. The act of preventing access to a place or area by surrounding it with military forces.
2. A situation in which a particular area or place is surrounded by military forces and access to it is prevented.

Origin:

The word blockade comes from the french word "blocade" which means to block or to close off. it refers to the act of preventing access to a place or area by surrounding it with military forces.

Examples:

1. The city was under a naval blockade.
2. The country was under an economic blockade.
3. The blockade was put in place to prevent the enemy from receiving supplies.
4. The blockade was lifted after the treaty was signed.
5. The blockade caused a shortage of essential goods in the country.