blade, sword, edge
刃 centers on the sharp cutting part of a tool or weapon: the blade, edge, or sword itself.
刃 is derived from 刀 (sword) with an added mark indicating the blade's cutting edge.
The outer shape is a sword 刀, and the small inner mark points to its sharp edge. 刃 is the blade.
For ジン, imagine a blade so sharp it could cut through a jean jacket: jean -> ジン, and the blade slices cleanly.
edge (of a knife or sword); blade
edged tool; cutting instrument; knife
double-edged (e.g. sword blade); double-beveled (e.g. kitchen knife)
single edge (e.g. sword blade); single bevel (e.g. kitchen knife)
edge of blade
suicide by the sword
drawn sword; naked sword
length of a blade
affectation; pretension; thin veneer; hasty preparation; stopgap (measure); superficial (polish, knowledge)
bloodshed
broad-bladed kitchen knife (for dressing fish); deba knife
Baki the Grappler (manga and media franchise)
double-edged saw
sword blade
round-edged scalpel
assassin's dagger
broad-bladed kitchen knife (for dressing fish)
sword blade
blade; sword
nick in a blade (sword, knife); chip in a blade