1. tall military boots that reach above the knee
2. oppressive military or authoritarian control
Usage: figurative

Examples

• The soldiers wore black jackboots as part of their uniform.
• His jackboots clicked loudly on the marble floor.
• The cavalry officer polished his jackboots before the parade.
• The protesters feared living under the jackboots of the regime.
• Citizens refused to submit to the jackboots of oppression.
• The dictator’s jackboots trampled on human rights.