What is the meaning of the word "fly"?

Definitions:

an opening in a garment that is closed by a zipper or by buttons concealed under a fold of cloth noun
- I was extremely embarrassed to notice that the fly of my trousers had been open the whole night.
be dispersed or disseminated verb
- Rumors and accusations are flying
cause to fly or float verb
- fly a kite
change quickly from one emotional state to another verb
- fly into a rage
display in the air or cause to float verb
- fly a kite
in British slang, not to be deceived or hoodwinked adjective
- I was too fly, and easily saw past the lies.
transport by aeroplane verb
- We fly flowers from the Caribbean to North America
travel in an airplane verb
- They are flying to Cincinnati tonight.
travel over (an area of land or sea) in an aircraft verb
- Lindbergh was the first to fly the Atlantic