Sorry, boys - to impress me in 2024, you'll have to come up with something better than
1932 (ffs) engineering language.
Let's try:
https://www.boldmethod.com/learn-to-...-of-incidence/
"The angle of incidence is the angle between the longitudinal axis of the aircraft (draw a line from the spinner to the tail) and the chord line of the wing (draw a line from the leading edge to the trailing edge). This is
not the same as your angle of attack. Your angle of attack is the angle between your chord line and the relative wind."
Angle of Incidence - built into the aircraft (albeit perhaps with a variable mount - F-8 Crusader, others)
Angle of Attack - a value that varies during flight, depending on the relative wind at the leading edge of the airfoil.