.38 Special is a specific caliber. There are other .38 caliber cartridges- about a dozen. The most common OTHER 38 is the .38 S&W, which is shorter, fatter, and less powerful than the .38 Special. MOST of the different .38s do NOT interchange.
A regular pistol is a firearm. It uses gunpowder to fire a bullet. An air pistol uses compressed air to fire a pellet with less velocity than a firearm.
A pistol rated to fire .38 +P ammunition is still going to be a .38 Special pistol, and can use regular .38 Special ammunition. .357 Magnum revolvers are also capable of chambering and firing .38 Special loads - regular, +P, and +P+ included.
While there ARE specialized target auto pistol that are in caliber .38 Special, they are quite rare. The .38 Auto, and the .38 Super are both different cartridges from the .38 Special, and do not interchange. For everyday purposes, the .38 Special is a revolver cartridge, and the .38 Auto a semi auto pistol cartridge.
A revolver has a rotating chamber that houses the bullets a pistol has a "clip" or "magazine"
the suppressor
The pistol does not have a permanently attached stock- and it is a lot harder to control. The pistol is one handed, the gun two.
The difference is that a pistol has a magazine and a revolver has a rotating cylinder that has individual chambers to shoot
There is no difference. ACP stands for Automatic Colt Pistol.
The 9mm Parabellum is longer than the .380 ACP (also called the 9mm Short) They do not interchange.
You will have to be more specific for this question to be answered. For example, you might ask "What is the difference between a Nambu pistol and a Colt pistol". But the question cannot be answered in the form you ask it. Take some time to ask correctly please.
Some people distinguish between pistols and revolvers. Both are handguns, but revolvers may not be pistols. A pistol would be an automatic, a single shot, a derringer type pistol, etc- but a revolver must have a cylinder holding the cartridges that revolves.
Small - regular - not the magnum