Forced induction from outside the motor is supercharged. A top fed by a blower 2 stroke is supercharged. A crankcase fed 2 stroke is not.
No matter what Otto said, spark ignition is just what it is and compression ignition is a diesel.
Stroke it as many times as you want, but how it gets there and how you get it lit are not the same.
You can suck it, blow it , fuel it, and steam it, but if it goes through batteries and an electric motor before it get to the ground it is electric. If you make steam with it and drive the wheels with that, it is a steamer, no matter if you you use pistons, blades , or both. If you go straight from fuel to blades to drive the wheels, you are a turbine and can't park near the pissing guys.
If it does not drive through the specified number of wheels,that blows and it just sucks because you have to run it another time.
I think.