metal fake sword; imitation sword
Refers to a metal imitation sword, often a replica that closely resembles a real katana. Commonly used for display, cosplay, or martial arts practice.
He displays a metal fake sword on his wall as a collector's item.
This imitation sword is safe because it has no sharp edge.
居合刀 is a practice sword for iaido, usually unsharpened, whereas 模造刀 is primarily for display or cosplay and may not be suitable for actual training.
模造 (imitation) + 刀 (sword). A straightforward compound describing a replica sword.