What is the difference between pitch and lift of an aircraft?Please kindly try to include graphics with your answers
The pitch axis is one of the three axes around which an aircraft can rotate. The pitch angle is the angle of rotation around this axis, where zero indicates that the aircraft is level with the horizon (in pitch). You can see all three axes in the following image (from Wikimedia):
All three angles combined describe the attitude of the aircraft. The term pitch attitude is used to describe the current pitch angle.
The lift is a force acting on the aircraft. It is mostly created by the wings, but also by the horizontal stabilizer and less so by the rest of the aircraft. You can see the typical 4 forces acting on an aircraft in the following image (from NASA):
In level flight the lift is exactly equal to the weight.
The pitch angle and lift have no direct connection. Lift does indirectly depend on pitch because increasing pitch will increase the angle of attack, which will influence lift. See also What effect does the angle of attack have on lift and drag?