Angle of Attack

also referred to as aoa, a of a, or alpha.

This is the angle at which the wing is presented to the airflow, in order to create lift.
0 alpha = 0 lift
too much alpha also = 0 lift!
The forward speed is also important - more speed = less alpha to achieve the same amount of lift.

Is this the angle the aeroplane goes up at and we instinctively reduce if we know its to steep

yes sir.

Then Tony ,Eric has taught me something,he has a beard you know its 30 years long apparently