Usually you'll see MPFI as opposed to MFI. (Multi Port Fuel Injection)just a couple
OHV=Over head valve
SOHC=single over head cam
DOHC=dual over head cam
#V= number of valves, divide by cylinders for valves per cylinder. 32V V8 = 4
EFI=electronic fuel injection
SPI=sequential port injection
MPI=multi port injection
#.#L=metric engine displacement- 5.0L
###ci=standard engine displacement in cubic inches- 302ci
+...I4 = inline 4 cylinder.
I6 = inline 6 cylinder
V6 = 6 cylinders, in a V!
V8 = same as v6, but with 2 more cylinders
v10 = same as the 8, but with 2 more cylinders
v12 = what's in my focus
turbo = using the exhaust gasses to spin a turbine to compress air for the intake charge.
supercharger = using the drivebelt to spin a turbine to compress air for the intake charge.