1. a sword with a single cutting edge and a thick back
Usage: historical
2. a type of fencing or sword fighting using single-edged swords
Usage: historical; martial arts

Examples

• The soldier drew his backsword from its sheath.
• Medieval knights sometimes preferred the backsword for its durability.
• The fencing master taught backsword techniques to his students.
• Pirates often carried a backsword as their weapon of choice.
• The museum displayed an ornate 17th-century backsword.
• Backsword fighting was popular in England during the 18th century.