1. Also,wing'tip".the extreme outer edge of an airplane wing.
2. a toecap, often with a perforated pattern, having a point at the center and a piece at each side extending back along the top and sides.
3. a style of shoe with such a toe.
4. the portion of a bird's folded wing formed by the part of the primary feathers extending beyond the secondary feathers.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.