You can try blade, cutter, cutting edge, dagger, stiletto
More remote terms might include sword, bayonet, , lance, lancet, bit, cutlass, machete, kris, whittle, poniard, scalpel, edge, dirk
Another name for a soft knife would be soft knife an a straight knife.Maybe even a rounded knife
operating knife maybe
Bowie.
Could be fruit knife.
It's called a dagger.
A "Pairing" knife is the most commonly used knife for peeling the skins from vegetables. A medium "chef's knife" is used for chopping and slicing vegetables.
a fake wooden knife :)
It is also known as a cone biopsy or cold knife cone biopsy.
A whittling knife?
A palette knife.
obsidian knife
The back of a knife is called the bolster.