Other forms: wingtips
The wingtip is the very end of an aircraft wing. Clip a wingtip, wingtip lights, the wingtip vortex.
It is where the swirling wake begins, and the upturned winglets on modern aircraft exist to cut that vortex and save fuel. Aircraft must keep a distance behind each other on landing for exactly that reason.
1nounwingtipThe very end of an aircraft wing.
“From my window seat, I watched the wingtip bounce slightly in the turbulence.”
wingtip is a part.
Wing plus tip, from the plain description of the end of the wing.
From wing + tip.
Etymology from Wiktionary, CC BY-SA