Pilots and aeronautical engineers use the forces involved in lift to help them design and fly planes of all sizes and shapes. With the right lift, even an 870,000-pound jumbo jet can head for the sky.
The definition of a cry is a shedding of tears or a calling out. An example of a cry is a scream for help. Cry is defined as to shed tears or call out. An example of to cry is to release tears after hearing sad news.
sound, any disturbance that travels through an elastic medium such as air, ground, or water to be heard by the human ear.