What are the two meanings of fly?

The word fly has two primary meanings as a verb and a noun, though it has many extended senses. As a verb, fly means to move through the air with wings or in an aircraft, such as birds flying, planes flying, or to travel quickly, to run, to flee, to move fast, and to operate an aircraft as in fly a plane. As a noun, fly means a small flying insect with two wings, such as housefly, fruit fly, that is common pest, and also means a flap of fabric covering a zipper on pants, as in fly of trousers, and in fishing, an artificial fly used as lure. So two main meanings are to move through air and the insect. However, fly also has other meanings as adjective in slang meaning stylish, attractive, cool, as in that outfit is fly, and as noun in baseball meaning fly ball hit high in air. The word has many idiomatic uses, but core two meanings are verb to travel through air and noun for insect. In grammar, fly also has past forms flew and flown. Understanding context is important to determine whether fly refers to action of flying or insect, as in time flies like arrow, but fruit flies like banana, which plays on both meanings. So two meanings are verb to move through air and noun for insect, with additional slang and specialized meanings.