刃 - blade, sword, edge

length of a blade

edge of blade

edged tool; cutting instrument; knife

edge (of a knife or sword); blade

sword blade

double-edged sword

bloodshed

blade; sword

lancet

bloodshed

double-edged (e.g. sword blade); double-beveled (e.g. kitchen knife)

broad-bladed kitchen knife (for dressing fish); deba knife