to sharpen; to grind; to whet; to hone; to make keen
to sharpen; to grind; to whet; to hone; to make keen
sharpener (of swords) and polisher (of mirrors)
claw sharpening; scratching post (for cats); claw sharpener
knife sharpener; whetstone
claw sharpening; scratching post (for cats); claw sharpener
tool sharpener (esp. knives)
claw sharpening; scratching post (for cats); claw sharpener
sharpening with a rough grindstone; rough sharpening
sharpening with a rough grindstone; rough sharpening