vanes is a form of:

Vane



noun
1.
កង្ហារខ្យល់
2.
(a weather vane, the blade of a propeller sail of a windmill or similar device acting on moved by mind or water) ព្រួញចង្អុលទិសខ្យល់, ចង្អុលទិសខ្យល់បក់មានស្លាបតូច
ENGLISH MEANING
noun
1.
A contrivance attached to some elevated object for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely.
2.
Any flat, extended surface attached to an axis and moved by the wind; as, the vane of a windmill; hence, a similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc.
3.
The rhachis and web of a feather taken together.
4.
One of the sights of a compass, quadrant, etc.