The blade is very sharp.

A flat, sharp piece of metal used for cutting.
He replaced the blade in the knife.
The blade cut through the wood easily.
She sharpened the blade before using it.
sharp blade
saw blade
slicing blade
cutting edge
knife edge
cutter
The knife has a sharp blade.

A flat, sharp part of a tool or weapon used for cutting.
The sword has a long blade.
She sharpened the blade before using it.
The scissors have a stainless steel blade.
sharp blade
knife blade
blunt blade
edge
cutting edge
knife edge
He will blade the wood to make it smooth.

To cut or shape something with a blade.
She will blade the paper for the craft project.
They bladed the ice to make it smooth for skating.
He plans to blade the metal for the sculpture.
blade a surface
blade with precision
blade the edges
cut
trim
shave