Melaniparus leucomelas, a small bird of the tit family Paridae

Oecanthus niveus.

plural of narrow-winged tree cricket

(usually in singular) The distance from the left wingtip to the right wingtip (of a bird, airplane etc.). / (usually in singular) One's arm span. See also fathom

plural of wingspan

The distance between the extreme tips of the wings of a bird, insect or aircraft.

plural of wingspread

plural of wingspot

A spot on a wing (as of a bird or butterfly).

A variable-camber aerodynamic structure that may be fitted to a marine vessel in place of conventional sails.