中文翻译与英英解释

单刃剑；大砍刀；木剑。

a sword with only one cutting edge

a stick used instead of a sword for fencing
同义词：singlestick, fencing stick,

A backsword is a type of European sword characterized by having a straight single-edged blade and a hilt with a single-handed grip. It is so called because the triangular cross section gives a flat back edge opposite the cutting edge.