Glossary
What is angle of attack?
The angle between the wing's chord line, the straight line from its leading edge to its trailing edge, and the relative wind. It is set by where the wing is going compared with where it is pointed, which is not the same thing as the airplane's attitude against the horizon.
Also called AOA, alpha
That is the whole entry for now. The longer version, with the mechanics and worked examples, is still to be written. See autorotation for how those read once they exist.