noun

• (history) A type of early modern sword that has a broad double-edged blade for cutting (as opposed to the more slender thrust-oriented rapier) and typically a basket hilt.
  "The principal distinction between the broadsword and the rapier is, that the latter is formed only for thrusting, while the former is adapted for cutting also. Indeed, those who use the broadsword are, in my opinion, too apt to neglect the use of the point, and to give their attention almost exclusively to the cuts."
• (colloquial, often fantasy) Synonym of longsword.
  "The Brythunian's arm drew back; the ancient broadsword with its strange, clawed quillons arcked spinning through the air."

verb

• (transitive, rare) To attack or kill with a broadsword.
  "She’d met her first black knight—a pock-faced man in his sixties, wearing an ugly brown hat—and escaped from him without being broadsworded to death."