obsidian knife
The Mayan ceremonial knife was commonly used to cut out the hearts of prisoners of war to sacrifice to their gods.
Obsidian stone
A shaving blade resembling a knife.
The name of the person who invented the first knife is lost to history. People were using sharpened animal bones and rocks as knives long before humans had learned how to write.
company's coming
A man will visit if you drop a knife, a woman if it's a fork or a child if its a spoon. I think they will be unexpected visitors.. Maybe its true someone else should pick it up if it's a knife, there should always be a remedy.
It's unhygienic. The floor that you dropped the knife on will not be clean (as in free from germs). Your jeans will also not be free from germs.
A drop point blade has a convex curve of the back, the opposite side of the cutting edge, towards the point.
it is a hunting knife which instead of having a straight back the spine drops to meet the edge half way down
He had a version of a drop shoulder rig. I'd reccomend drop thigh though.
knife
That means a sharpened knife. The knife has been applied to a whet stone and is nice and sharp.
If you mean a regular straight blade knife and not a pocket knife, the case is called a sheath.
A knife mainly intended to be used to cut up vegetables
Do you possibly mean a knife that is attached to the front of a rifle? If so, that is a bayonet.
knife