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.
Cry is the general word: to cry out. To shout is to raise the voice loudly in uttering words or other articulate sounds: He shouted to his companions. Bellow refers to the loud, deep cry of a bull, moose, etc., or, somewhat in deprecation, to human utterance that suggests such a sound: The speaker bellowed his answer. Roar refers to a deep, hoarse, rumbling or vibrant cry, often of tumultuous volume: The crowd roared approval.