No, we are not. We are made up of similar cells forming similar biologial systems. We ingest and metabolize food, and reproduce and so on. Your layman's terms are just names, just as is the nomenclature of scientific taxonomy. Just names that humans make up to try and classify what is for all practical purposes a continuum of living types.
I am truly floored. After all this time arguing about evolution you have learned absolutely nothing about it. I don't expect you to agree with it, but you should at least try to learn what the theory actually says.
Any species of lizard belongs to the order Squamata. A species of lizard belonging to the order Squamata will always belong to the order Squamata as will all of its descendants, no matter how they evolve or how little they may come to resemble your superficial idea of a "lizard." No matter how insect-like, or arachnid-like or ape-like or cat-like they become, they will still belong to the order Squamata. Even if they evolved fur, long ears and little fluffy tails and hopped around in meadows they would still belong to the order Squamata. Anything else would set the theory of evolution on its ear.