Definitions:

1. Refers to a type of sturdy, knee-high leather boot that was historically worn by military personnel, particularly soldiers, especially in the 18th and 19th centuries. NOUN
   • The sound of jackboots on the pavement sent shivers down the spines of the people, reminding them of the oppressive regime they lived under.

Synonyms:

• army boot
• hessian
• military boot
• top boot