If you are talking about a dagger-like knife, then you can say "punal". If you are talking about a knife you would use in the kitchen, then you could say "Cuchillo".
Because the Knife was created before the Fork.
An object's function is not a physical property, it is an abstraction. When we say that something has a particular function we are saying what use we intend to make of that object. It is our thought, it is not an inherent property of the object. Let us say for example that I own a knife. Its function is to chop vegetables, since that is what I do with it. However, another person might say that the function of that knife is to cut the throat of his enemies, because that is what he intends to do with it. Another person might say that its function is to carve wood. Its actual physical properties include a sharp edge. The sharp edge is a property, but the use to which that sharp edge is put depends upon the object's owner.
Russian for "knife" is нож, pronounced nosh.
Edge = Ka'e
a knife = un couteau (pronounce coo-toe)
The spoon is der Löffel in German.
Don't cut me!
nojh..............нож
刀 and is read as dao
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短いナイフ (mijikai naifu) is one way of saying "short knife" in Japanese.