practice sword; imitation sword
Refers to a sword-like object used for training, display, or as a prop, not a real weapon. Often made of wood or bamboo, or a blunt metal replica.
Practice swords are used in the filming of period dramas.
Beginners first practice swinging with a practice sword.
模擬 (simulation, imitation) + 刀 (sword). A straightforward compound describing an imitation sword used for practice or display.