backsword

名词 backsword:

1. a stick used instead of a sword for fencing
   同义词：singlestick, fencing stick
2. a sword with only one cutting edge

back.sword

n.（名词）
A sword with only one cutting edge.
单刃刀：只有一边刀刃的剑
A one-handed fencing stick; a singlestick.
木剑：单手击剑木棍；剑状单棍