- A heavy military boot reaching the calf, worn especially by cavalry or armored troops.
- A symbol of extreme military or political control or oppression.
Early 17th century: from jack "man" + boot.
- The jackboots of the soldiers made a loud clatter on the cobblestone streets.
- The jackboots were seen as a symbol of fear and tyranny by the people.
- The jackboots were issued to soldiers for added protection in battle.
- The sight of the jackboots marching down the street filled the people with dread.
- The jackboots became a symbol of Nazi Germany and its military expansion during World War II.