vane vs windmill

vane and windmill both are nouns.

Word	Noun	Adjective	Verb	Adverb
vane	Yes	No	No	No
windmill	Yes	No	No	No

vane (noun)	windmill (noun)
the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft	generator that extracts usable energy from winds
mechanical device attached to an elevated structure; rotates freely to show the direction of the wind	a mill that is powered by the wind
flat surface that rotates and pushes against air or water
a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it