noun

A battering ram is a heavy tool used for breaking down doors or walls, typically made of a strong beam or log and carried by several people, used as a battering tool against fortifications or buildings to break through them.

Example

1. The police used a battering ram to break down the door of the suspect's house.
2. The medieval army carried a battering ram with them to break down the castle gates.
3. The robbers attempted to use a battering ram to break into the bank's vault, but they were unsuccessful.