(1):

(n.) One that uses wings.

(2):

(n.) A small operation not involving ? considerable part of one's capital, or not in the line of one's ordinary business; a venture.

(3):

(n.) The fan wheel that rotates the cap of a windmill as the wind veers.

(4):

(n.) The pair of arms attached to the spindle of a spinning frame, over which the thread passes to the bobbin; - so called from their swift revolution. See Fly, n., 11.

(5):

(n.) One in a flight of steps which are parallel to each other(as in ordinary stairs), as distinguished from a winder.

(6):

(n.) The fly of a flag: See Fly, n., 6.

(7):

(n.) Anything that is scattered abroad in great numbers as a theatrical programme, an advertising leaf, etc.