This is probably something I should know, but what is "denatured" alcohol? Can I use rubbing alcohol in its place?

I am getting ready to apply adhesive veneer to a project I'm working on and it says to clean the surface with denatured alcohol first. I'm trying to figure out if there's some chemical I already have that would do the same thing to avoid yet another trip to the hardware store.

Any suggestions?

Thanks.
Snappy