coltello means knife in Italian

How do you say knife in Italian?

Coltello!

Coltello, knife, is used to describe both the coltello for food preparation in the kitchen and the coltello for eating at the table.

Attenzione, il coltelo è tagliente!
Careful, the knife is sharp!

Extra credit, make pronunciation fun:

Coltello starts out sounding like "coal"

The second syllable gets the emphasis and sounds like "TELL"

The third syllable sounds like "low"

Make sure to take your time pronouncing both l's, both the l of "TELL" and the l of "low"
coal-TELL-low