The term "siege" refers to when an attacking army surrounds a city and keeps it from being able to receive any supplies of food and water. To "besiege" a city means to cause that city to be under a siege.
* When Babylon came to attack Israel, they used a siege tactic on Jerusalem to weaken the people inside the city.
* Often during a siege attack, ramps of dirt are gradually constructed to enable the attacking army to cross over the city walls and invade the city.
* The expression "lay siege" means to perform a siege. It has the same meaning as "besiege."
* The term "besieged" has the same meaning as the expression "under siege." Both these expressions describe a city that an enemy army is surrounding and besieging.