A propellor turns shaft torque into air momentum. You need some kind of motor to drive it. A ducted fan also does this, though its aerodynamics are a bit diffe

A propellor turns shaft torque into air momentum. You need some kind of motor to drive it. A ducted fan also does this, though its aerodynamics are a bit different. Like a propellor, there is little compression. A 'turbine' turns flow into torque. A traditional jet engine turns fuel into torque with a compressor and a turbine. Confusingly it's sometimes called a 'gas turbine'. It also incidentally moves air, but not very efficiently. A turboprop drives a propellor with a 'gas turbine'. A modern 'high bypass' jet engine (or "turbofan") drives a ducted fan with a 'gas turbine'. An 'electric jet' drives a ducted fan with an electric motor. No turbine is involved.