martial art –n. one of several forms of fighting and self-defense that are widely practiced as a sport
lesson –n. something learned from experience
fascinating –adj. very interesting or appealing
punch –v. to strike with a closed hand
challenge –n. a difficult task or problem
confidence –n. a feeling of belief that you can do something
lockdown –n. an emergency situation in which people are not permitted to move around freely
dissuade –v. to persuade someone not to do something