a large wheeled gun used in the past that fires heavy metal balls
The invention of cannon changed the way wars were fought.

to frighten someone
I hate ghosts. They scare me.

비명을 지르다
Her friends screamed when they thought she was hurt.

the structure of bones that protects and supports the body of a human or animal, or a model of this structure
We found an animal's skeleton when we were walking in the forest.

a weapon with a long sharp blade
Previously, warriors were trained to use swords.

a tube-shaped device used to view objects at a great distance
I see him every day through my telescope on the roof.

something a person finds valuable
Black beard attacked ships at sea and stole their treasure.

a device or tool that is used for fighting with, attacking, or defending against other people
The hydrogen bomb is one of the nuclear weapons.