wing tip

Also wing·tip. the extreme outer edge of an airplane wing.

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.

a style of shoe with such a toe.

the portion of a bird's folded wing formed by the part of the primary feathers extending beyond the secondary feathers.

Origin of wing tip

First recorded in 1870–75

Old travellers used to make them out to be twenty-five or thirty feet from wing-tip to wing-tip; but they do reach the size I say.

Real Gold |George Manville Fenn
But there came no answer, and mounting to the wing-tip, Joan following, Jim saw a sight that froze him with horror.

Spawn of the Comet |Harold Thompson Rich
Wash-out—A decreasing angle of incidence of a surface towards its wing-tip.

The Aeroplane Speaks |H. Barber
This danger was greatly alleviated when the wing-tip flares were invented.

America's Munitions 1917-1918 |Benedict Crowell

And when it is big enough to reach from 'wing-tip to wing-tip' you'll find that she has grown to be just like a real mother.

Miss Santa Claus of the Pullman |Annie Fellows Johnston

wing tip

the outermost edge of a wing